USB bin
Printed From: Speakerplans.com
Category: Plans
Forum Name: New Projects Forum
Forum Description: Forum for new speakerplans projects, in memory of Tony Wilkes, 1953 - 2014
URL: https://forum.speakerplans.com/forum_posts.asp?TID=4361
Printed Date: 26 March 2026 at 11:31pm Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: USB bin
Posted By: davey t
Subject: USB bin
Date Posted: 20 March 2006 at 5:18pm
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yo, finished the prototype today:
http://imageshack.us">
http://imageshack.us">
Sounds really nice - goes fairly low. no chance to crank it yet, will try to get a response taken tomorrow
at less than £300 a bin- jobs a goodun. aim is to build 20 odd.
:D
dave
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Replies:
Posted By: super-hero
Date Posted: 20 March 2006 at 6:21pm
Very nice looking box . Is it a twin 18.
------------- I'm not an animal, I'm a human being.
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Posted By: mans1000
Date Posted: 20 March 2006 at 6:52pm
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Great job on that cab!
20! Would like to hear that!
------------- "The earth provides enough to satisfy every mans needs...but not every mans greed."
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Posted By: davey t
Date Posted: 21 March 2006 at 5:35am
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yea reverse firing double 18" celestion ftr 4080FD loaded. Good drivers, work really well in this cab. They say that they take 1000w aes per driver! i personally doubt the xmax could handle this.
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Posted By: ceharden
Date Posted: 21 March 2006 at 6:27am
Very nice work! Me wants! Me wants!
Look fairly straightforward to build as well.
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Posted By: davey t
Date Posted: 21 March 2006 at 5:05pm
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right, so I don't have the equipment to do a smaart test etc, but i did a simple easy and dirty test using a signal generator, multimeter and sinwave generator!
obviously this isn't ideal, but i did a lab sub and two hd15's under the same conditions to gain some kind of comparison. all have a notch at 70hz and 125hz which could be the db meter. All were standing up with the db meter 1m away, 60cm off the floor
i kept the input voltage reading on the multimeter constant at 2v for the usb, 1.9v for the lab and 1.41v for the hd's (4ohm pd158 loaded in parallel)
http://imageshack.us">
red is lab, blue is usb and green is hd's
as you can see, all the db values seem very low, but i'm not sure if my multimeter is showing pk, pk-pk or rms. gives some idea anyway.
will try and find someone with smaart but sounds loud and good to my ears and i guess thats the most important thing
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Posted By: Mark James
Date Posted: 21 March 2006 at 6:11pm
they look pretty!
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Posted By: phaze one
Date Posted: 22 March 2006 at 6:29pm
they look a bit like the funktion one f-218 bins
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Posted By: Mark James
Date Posted: 22 March 2006 at 8:06pm
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or a moded double es18-bph [sort of they look nice on the front. is thst nice little peak at just above 180 just below 200hz? nice! more "kick" than a hd15 then? [or equivelent amounts of each i mean]
sweet are plans going to be avail or this a comercial ish venture your letting us have a sneaky peak at? nice one either way!
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Posted By: davey t
Date Posted: 23 March 2006 at 4:08am
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not sure really. I think the plan at the moment is to get them cadded asap and find someone to cnc the wood for 24 or so. Then sell them in flat packs complete with drivers, trimite etc. Doing it this way in bulk makes things much cheaper for everyone (and quicker to put together), we could probably do the pack for about £400. May find a joiner who wants to put them together but i certainly dont have time for it.
Anyone interested?
Its also interesting that my hornresp model predicted a big peak in the response at 115hz which doesn't seem to be there (my ears comfirm this with sin wave sweeps etc). Thats good tho. it did predict the next bump at just over 200hz, which is there. All in all the response sounds very smooth, with just a little -3db attenuation on +100hz they sound very good crossed 40-160hz.
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Posted By: Hugo Biermann
Date Posted: 17 June 2006 at 10:24am
Why not post the plans on da forum? Everyone would like to have a go at these cbs it seems....
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Posted By: Timber_MG
Date Posted: 17 June 2006 at 11:53am
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Don't forget that it will be a fair bit specialized (2-way bass) but these designs inevitably kick like a donkey and don't have to be crossed as low as converntional folded units.
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Posted By: davey t
Date Posted: 17 June 2006 at 12:15pm
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the plans are up now on our website
http://www.dissident-faction.co.uk/usbproject - www.dissident-faction.co.uk/usbproject i think
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Posted By: EJT Sound
Date Posted: 18 June 2006 at 11:12pm
Cannot Open The page cannot be display....Why????
------------- EJT Sound System
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Posted By: Ambrocio
Date Posted: 19 June 2006 at 12:26am
The link is not working
------------- Life begins at 179dB!
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Posted By: Laurence G
Date Posted: 19 June 2006 at 4:10am
http://www.dissident-faction.co.uk/usbproject.htm - USB PLANS - LINK
- CLICK ME!!!
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Posted By: bartsegers
Date Posted: 19 June 2006 at 8:37am
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very nice bin !
Been busy with a similar bin for spl car audio...15"
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Posted By: Ambrocio
Date Posted: 21 June 2006 at 6:37pm
Dammm, that bin is huge!! cant imagine you putting in it in a car
------------- Life begins at 179dB!
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Posted By: Xmax extreme
Date Posted: 23 September 2006 at 9:48am
PGWLE wrote:
http://www.dissident-faction.co.uk/usbproject.htm - USB PLANS - LINK - CLICK ME!!! |
hi pgwle,
i can't open the link, why? something wrong with my browser?
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Posted By: Nigey-C
Date Posted: 23 September 2006 at 9:54am
Posted By: Tekasis
Date Posted: 23 September 2006 at 1:30pm
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Hi all, I double checked that what I had from back in July, & it's exactly the same, so I don't know why it's not working.
Luckily I had the details saved in a word document.
Here it is below:
USB Bass Bin
USB project
http://www.dissident-faction.co.uk/usbproject.htm#whatis#whatis - What is it? :: http://www.dissident-faction.co.uk/usbproject.htm#soundlike#soundlike - What does it sound like? :: http://www.dissident-faction.co.uk/usbproject.htm#getone#getone - Where can I get one? http://www.dissident-faction.co.uk/usbproject.htm#whatdrivers#whatdrivers - What drivers should I use? :: http://www.dissident-faction.co.uk/usbproject.htm#background#background - Design background and tekky info http://www.dissident-faction.co.uk/usbproject.htm#terms#terms - Terms and Conditions of use
What is it?
http://www.dissident-faction.co.uk/Images/usb/usbbin_front.jpg - - http://www.dissident-faction.co.uk/Images/usb/usbbin_side.jpg - - http://www.dissident-faction.co.uk/Images/usb/usbbin_close.jpg -
- The USB bin is a high efficiency, high power bass bin designed for general PA use and raves. It uses two 18” drivers in a band-pass horn configuration; that is, it has a short horn which gives it a high efficiency over 80hz, and a band-pass action due to its large rear and front chambers which allow for a shallow roll off – extending sub bass response.
::top::
What does it sound like?
The USB is an extremely efficient bass bin, with a very clean ‘solid’ sound without any honky peaks or distortions. It works great as a kick bin above subs (like Labs) but also on its own. This is because the horn mouths couple together as you add more bins and the huge power handing allows you to also push the USB low to give out serious sub bass.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
Where can I get one?
The USB is a bass bin that you can build yourself. The design is fairly simple as far as horns go, and no trouble for an experienced speaker builder. To save hours of time and to ensure a totally professional finished product, we highly recommend buying the USB as a FLAT PLACK. They are priced around £200 each and are 5-axis CNC routed from two 8x4 sheets of 13 laminate birch ply.
The panels just pop out and slot together in minutes. The flat packs, hardware, completed units and great deals on the recommended 1000w 18” drivers can be found at DMT sounds, http://www.dmtsounds.com/ - www.dmtsounds.com .
Alternatively, http://www.dissident-faction.co.uk/Images/usb/USBPLANS.jpg - you can download the plans .
By downloading the plans, you are automatically in agreement with the copyright terms and conditions outlined below.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
What drivers should I use?
The USB uses two reverse firing 18” drivers. Some drivers are more suited to the USB than others. I advise you to do some background reading so you understand what loudspeaker T&S parameters are and what they mean. http://www.speakerplans.com/ - www.speakerplans.com contains a very good FAQ section with specific reference to short folded horn of this type.
Basic guidelines:
· Fs: 25-32Hz
· BL product: 21-27
· Qts: 0.25-0.35
· Xmax: >6mm
· Voice coil: 4in or more
· Power handling: >500w rms
From my experience with this type of bass bin, a lower Fs, Bl and higher Qts value would give you a slow, loose sound with more sub. Likewise, a higher Fs, Bl and lower Qts value gives a tighter, punchy sound with excellent efficiency over 60Hz but a much steeper roll off below this.
The USB was designed to use the Celestion Frontline FTR18-4080FD 1000w.
Other drivers which will work:
· PD184
· Celestion FTR18-4080F 600w
· PD186 (although this may not fit)
· Fane Colossus 18B600
· Fane 18XB
· Beyma 18P1000
· P-audio challenger 18LF
· Eminence Magnum 18LF
· Eminence Magnum 18HO
· B&C PS100
· B&C PZB100
· B&C TBX100
· Eminence Omega pro 18
Please let me know how you get on with using these drivers. Check that they will fit before you buy them as the magnet sits very close to the first horn section.
REMEMBER:
1) You must use the same driver throughout your stack. Mixing and matching different drivers in the USBs will seriously degrade performance.
2) You must invert the polarity on the drivers to keep the USB in phase with the rest of your system.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
Design background and tekky info
Following the success on the Lab Sub, it was decided that the USB should be designed as an accompanying bass bin with the same front dimensions to allow for attractive stacking and ease of truck loading. A traditional horn design was considered, but the band pass configuration was settled upon as it allows for a wider response allowing you to use the USB on its own.
By making the USB to match the lab sub however, it was no longer possible to mount the drivers in the traditional ‘forward firing’ configuration. It was therefore decided that the drivers would be reverse loaded and fire ‘backwards’ through the magnet. In doing so, the front chamber has been made smaller, decreasing efficiency slightly around 60Hz, but the rear chamber is now larger, increasing sub bass response. Apart from this, there is no loss in output (as a driver acts like a piston) and there are actually some advantages:
1. The magnet now has a direct heat path to the outside and a cooling effect due to airflow over the magnet. This eliminates heat build up in the driver chamber, decreases power compression (loss in output due to heat) and allows for greater power handling.
2. The magnet acts like a phase-bung; to an extent, reducing path length differences and giving a much cleaner sound and flatter response.
3. Mounting the driver is a lot easier
4. There is protection of the paper cone due to the basket.
5. It is actually possible to reach round the horn and check on the magnet temperature!
The optimum horn mouth size was found mathematically to be ~800cm2. From this a fairly shallow hyperbolic-exponential horn flare parameter of 0.3 was chosen to maximise horn loading, and approximated using 3 conical sections. The design then went through many revisions to make everything fit within the space we had and underwent extensive modelling in David McBean’s HornResp program to optimise the front and rear chamber volumes.
Eventually a design was decided upon. To keep costs down, every effort was made to allow the USB to be built from 2 sheets of 8x4” with minimal wastage. For this reason, it was decided that the cross-brace should be cut out of the central brace, giving the USB its attractive ‘swept’ bracing.
Finally a prototype was built. So far we’re really happy with the results. A crude measurement of the response has been done using a sin-wave generator, multimeter and Db meter, and our ears confirm what you can see – a very flat response above 100Hz, and a slow smooth roll off below this.
http://www.dissident-faction.co.uk/Images/usb/usbmeasure.jpg -
::top::
-
1. The USB design and plans are protected by UK copyright laws and international treaty provisions.
2. Use of the plans is strictly limited to production of max 6 units per person and/or company. If you wish to build more a licensing agreement can be arranged.
3. Distribution or reference to the plans is strictly forbidden without prior permission and reference to http://www.dissident-faction.co.uk/ - www.dissident-faction.co.uk .
4. This design is provided "AS IS", without warranty of any kind. We take no responsibility for use and/or performance of these designs.
5. Sale of fully produced product for profit without prior permission from copyright holder is strictly prohibited.
USB bass bin, Copyright © DavidTrotter 2006. All Rights Reserved.
http://www.dissident-faction.co.uk/usbproject.htm - - http://www.dissident-fact
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Posted By: Nigey-C
Date Posted: 23 September 2006 at 1:33pm
And you will never guess what!
NONE of the links work on it, cos the site is most likely no longer there!!
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Posted By: Tekasis
Date Posted: 23 September 2006 at 1:34pm
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Shame, the text didn't come out.
These people are clever, the original is white text on a dark green background, & I thought the background would come out, but it didn't.
If you highlight the text you can read it.
There was also 3 pictures of the bin too & that didn't come out either.
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Posted By: Nigey-C
Date Posted: 23 September 2006 at 1:35pm
Or what you could do, it edit your post. Select all the Text and change the colour!!!
and the pictures wouldnt come out if you copied it from a word document..!!
Copy the images out of the word document into Paint, and save them.! Then Upload the images!
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Posted By: Tekasis
Date Posted: 23 September 2006 at 1:39pm
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Ok, I'll do that.
Cheers.
USB Bass Bin
USB project
http://www.dissident-faction.co.uk/usbproject.htm#whatis#whatis - What is it? :: http://www.dissident-faction.co.uk/usbproject.htm#soundlike#soundlike - What does it sound like? :: http://www.dissident-faction.co.uk/usbproject.htm#getone#getone - Where can I get one? http://www.dissident-faction.co.uk/usbproject.htm#whatdrivers#whatdrivers - What drivers should I use? :: http://www.dissident-faction.co.uk/usbproject.htm#background#background - Design background and tekky info http://www.dissident-faction.co.uk/usbproject.htm#terms#terms - Terms and Conditions of use
What is it?
http://www.dissident-faction.co.uk/Images/usb/usbbin_front.jpg - - http://www.dissident-faction.co.uk/Images/usb/usbbin_side.jpg - - http://www.dissident-faction.co.uk/Images/usb/usbbin_close.jpg -
- The USB bin is a high efficiency, high power bass bin designed for general PA use and raves. It uses two 18” drivers in a band-pass horn configuration; that is, it has a short horn which gives it a high efficiency over 80hz, and a band-pass action due to its large rear and front chambers which allow for a shallow roll off – extending sub bass response.
- ::top::
What does it sound like?
The USB is an extremely efficient bass bin, with a very clean ‘solid’ sound without any honky peaks or distortions. It works great as a kick bin above subs (like Labs) but also on its own. This is because the horn mouths couple together as you add more bins and the huge power handing allows you to also push the USB low to give out serious sub bass.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
Where can I get one?
The USB is a bass bin that you can build yourself. The design is fairly simple as far as horns go, and no trouble for an experienced speaker builder. To save hours of time and to ensure a totally professional finished product, we highly recommend buying the USB as a FLAT PLACK. They are priced around £200 each and are 5-axis CNC routed from two 8x4 sheets of 13 laminate birch ply.
The panels just pop out and slot together in minutes. The flat packs, hardware, completed units and great deals on the recommended 1000w 18” drivers can be found at DMT sounds, http://www.dmtsounds.com/ - www.dmtsounds.com .
Alternatively, http://www.dissident-faction.co.uk/Images/usb/USBPLANS.jpg - you can download the plans .
By downloading the plans, you are automatically in agreement with the copyright terms and conditions outlined below.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
What drivers should I use?
The USB uses two reverse firing 18” drivers. Some drivers are more suited to the USB than others. I advise you to do some background reading so you understand what loudspeaker T&S parameters are and what they mean. http://www.speakerplans.com/ - www.speakerplans.com contains a very good FAQ section with specific reference to short folded horn of this type.
Basic guidelines:
· Fs: 25-32Hz
· BL product: 21-27
· Qts: 0.25-0.35
· Xmax: >6mm
· Voice coil: 4in or more
· Power handling: >500w rms
From my experience with this type of bass bin, a lower Fs, Bl and higher Qts value would give you a slow, loose sound with more sub. Likewise, a higher Fs, Bl and lower Qts value gives a tighter, punchy sound with excellent efficiency over 60Hz but a much steeper roll off below this.
The USB was designed to use the Celestion Frontline FTR18-4080FD 1000w.
Other drivers which will work:
· PD184
· Celestion FTR18-4080F 600w
· PD186 (although this may not fit)
· Fane Colossus 18B600
· Fane 18XB
· Beyma 18P1000
· P-audio challenger 18LF
· Eminence Magnum 18LF
· Eminence Magnum 18HO
· B&C PS100
· B&C PZB100
· B&C TBX100
· Eminence Omega pro 18
Please let me know how you get on with using these drivers. Check that they will fit before you buy them as the magnet sits very close to the first horn section.
REMEMBER:
1) You must use the same driver throughout your stack. Mixing and matching different drivers in the USBs will seriously degrade performance.
2) You must invert the polarity on the drivers to keep the USB in phase with the rest of your system.
http://www.dissident-faction.co.uk/usbproject.htm#top#top - ::top::
Design background and tekky info
Following the success on the Lab Sub, it was decided that the USB should be designed as an accompanying bass bin with the same front dimensions to allow for attractive stacking and ease of truck loading. A traditional horn design was considered, but the band pass configuration was settled upon as it allows for a wider response allowing you to use the USB on its own.
By making the USB to match the lab sub however, it was no longer possible to mount the drivers in the traditional ‘forward firing’ configuration. It was therefore decided that the drivers would be reverse loaded and fire ‘backwards’ through the magnet. In doing so, the front chamber has been made smaller, decreasing efficiency slightly around 60Hz, but the rear chamber is now larger, increasing sub bass response. Apart from this, there is no loss in output (as a driver acts like a piston) and there are actually some advantages:
1. The magnet now has a direct heat path to the outside and a cooling effect due to airflow over the magnet. This eliminates heat build up in the driver chamber, decreases power compression (loss in output due to heat) and allows for greater power handling.
2. The magnet acts like a phase-bung; to an extent, reducing path length differences and giving a much cleaner sound and flatter response.
3. Mounting the driver is a lot easier
4. There is protection of the paper cone due to the basket.
5. It is actually possible to reach round the horn and check on the magnet temperature!
The optimum horn mouth size was found mathematically to be ~800cm2. From this a fairly shallow hyperbolic-exponential horn flare parameter of 0.3 was chosen to maximise horn loading, and approximated using 3 conical sections. The design then went through many revisions to make everything fit within the space we had and underwent extensive modelling in David McBean’s HornResp program to optimise the front and rear chamber volumes.
Eventually a design was decided upon. To keep costs down, every effort was made to allow the USB to be built from 2 sheets of 8x4” with minimal wastage. For this reason, it was decided that the cross-brace should be cut out of the central brace, giving the USB its attractive ‘swept’ bracing.
Finally a prototype was built. So far we’re really happy with the results. A crude measurement of the response has been done using a sin-wave generator, multimeter and Db meter, and our ears confirm what you can see – a very flat response above 100Hz, and a slow smooth roll off below this.
http://www.dissident-faction.co.uk/Images/usb/usbmeasure.jpg -
- ::top::
-
1. The USB design and plans are protected by UK copyright laws and international treaty provisions.
2. Use of the plans is strictly limited to production of max 6 units per person and/or company. If you wish to build more a licensing agreement can be arranged.
3. Distribution or reference to the plans is strictly forbidden without prior permission and reference to http://www.dissident-faction.co.uk/ - www.dissident-faction.co.uk .
4. This design is provided "AS IS", without warranty of any kind. We take no responsibility for use and/or performance of these designs.
5. Sale of fully produced product for profit without prior permission from copyright holder is strictly prohibited.
USB bass bin, Copyright © DavidTrotter 2006. All Rights Reserved.
http://www.dissident-faction.co.uk/usbproject.htm - - http://www.dissident-fact
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Posted By: djstefanos
Date Posted: 23 September 2006 at 1:39pm
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relax. i have it here
http://www.djstefanos.com/USBPLANS.jpg - http://www.djstefanos.com/USBPLANS.jpg
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Posted By: Xmax extreme
Date Posted: 02 October 2006 at 9:39am
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[QUOTE=Tekasis]
hi guys,
need your generous knowledge 
how would I invert the polarity of the drivers as stated in Note No.2.  Does this mean positive to negative then vice versa.?
How about i 'll just simply press the low phase invert button of the active crossover.?
USB Bass Bin
REMEMBER:
1) You must use the same driver throughout your stack. Mixing and matching different drivers in the USBs will seriously degrade performance.
2) You must invert the polarity on the drivers to keep the USB in phase with the rest of your system.
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Posted By: Static Age
Date Posted: 02 October 2006 at 10:11am
yeah just press the phase invert button.
-------------
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Posted By: Xmax extreme
Date Posted: 02 October 2006 at 10:15am
thanks static, just want to be sure.
best regards,..
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Posted By: Nigey-C
Date Posted: 19 November 2006 at 8:55pm
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just thought i would revive this thread... anybody built some? got anymore pics???
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Posted By: pooju
Date Posted: 20 November 2006 at 6:14am
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alright nigey
davey 'labsub terror' T is designing a usb 2 that has lower extension. Stay tuned ...
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Posted By: Nigey-C
Date Posted: 10 December 2006 at 7:34pm
any further development on the USB2??
sorry i like being impatient
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Posted By: davey t
Date Posted: 11 December 2006 at 1:50pm
Posted By: arxxx
Date Posted: 09 November 2007 at 8:52am
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what if the speaker being used front firing and what would be the high pass &the lowpass.
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Posted By: arxxx
Date Posted: 04 December 2007 at 2:01pm
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what if the speaker being used front firing and what would be the high pass &the lowpass?
please reply !!!!!!!
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Posted By: biotec
Date Posted: 04 December 2007 at 2:55pm
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why would you want it front firing? the cab is designed to have the speaker reverse mounted so it will work as designed in that configuration.
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Posted By: Mark James
Date Posted: 04 December 2007 at 9:18pm
possibly in the hope that it would increase the front chamber enough to lower the cut off slightly, this would obvously affect the upper response as much as the lower end... im guessing thats why he would want to and then ask, howether if thats the case then id just redesign it a bit bigger, with a larger front chamber and if poss a longer horn,,,, that would lower the response a bit id gues...
------------- insert silly sentence here
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Posted By: arxxx
Date Posted: 18 December 2007 at 11:02am
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will PDN18SB40 work in usb bins ??????
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Posted By: arxxx
Date Posted: 22 December 2007 at 7:24am
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Willl PDN 18SB40 work in USB bins ????? http://www.precisiondevices.co.uk/ShowDetails.asp?id=72 - http://www.precisiondevices.co.uk/ShowDetails.asp?id=72
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Posted By: josh
Date Posted: 22 December 2007 at 3:18pm
Posted By: davey t
Date Posted: 22 December 2007 at 10:09pm
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Yes, i think they would work really well! Ts looks good. The reverse loading will help with the cooling (neo drives suffer from this). 6mm xmax is a little low but then again its always been adequate with the celestions.
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Posted By: arxxx
Date Posted: 24 December 2007 at 6:40am
Posted By: tekoffensive
Date Posted: 09 September 2009 at 12:18pm
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i know this threads quite old, but were them flat pack usb kits ever made?? would make life alot easier and cheaper for me!!
also any info on the usb2's?? havent seen any info or even pics of them let alone a plan..
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Posted By: Jake_Fielder
Date Posted: 09 September 2009 at 12:50pm
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I dont think the plan will be available, but there are pics and (uncalibrated mic) plots in a thread called "usb2" !! by davey t. if i recall correctly.
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Posted By: tomschute
Date Posted: 09 September 2009 at 1:05pm
PM'D with USB2 Info
For the record I hold license to produce finished cabs. No plans up for grabs. Just completeing 2 now and damn they go low. We had them down to 40Hz - single cab and sounded very nice indeed.
Anyone whos serious can email me for more info... I will endeavour to get calibrated plots before these go out.
Tom
------------- Out to lunch... stableaudio@hotmail.co.uk www.stableaudio.co.uk Speaker Building Services
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Posted By: despoiler
Date Posted: 11 September 2009 at 11:26pm
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I'm very interested in building a version of the USB bin with V18 1000s in, Voids own Stasys 8 bins are USB lookalikes so the design does work for them, can some1 give me a plan adaptation to work with the V18s pls, I think it is a case of getting the rear box volume right but I don't know enough to do the calculations I need to work it out myself so can some1 help me out pls
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Posted By: dj-panoramix
Date Posted: 18 September 2009 at 1:56pm
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by using hornresp parameter that have been put on the simulation database it looks like the void isn't the best driver for using in USB
here are simulations of half USB in 0,5PI with 2.83V:
http://img156.imageshack.us/i/halfusbvoidvscelestionf.jpg/">
black is void, grey is celestion FTR
here is another one with with PD184 vs celestion FTR:
http://img188.imageshack.us/i/halfusbpd184vsftr.jpg/">
black is pd184, grey is celestion
here is another one with PD186 vs celestion FTR:
http://img246.imageshack.us/i/halfusbpd186vsftra.jpg/">
black is pd186, grey is celestion
here is another one with Fane 600B:
http://img21.imageshack.us/i/halfusbfane600bvsftr.jpg/">
black is fane, grey is celestion
here is a last one void vs void but with a VRC70L vs normal VRC:
http://img19.imageshack.us/i/halfusbvoidvsvoidwithvr.jpg/">
black is VRC 70L, grey is normal VRC
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Posted By: pfly
Date Posted: 18 September 2009 at 7:15pm
Umm... Where has the idea come from that Stasys 8 should be similar to USB. Stasys X is just a really small bit deeper than the 8 and it has two 1,6 meter horns in it PLUS the series tuned resonant chamber things. I guess it is possible to put proper horns in the dimensions of Stasys 8 and, unlike USB that is "just" a horn assisted bandpass design with shorter horn and bigger chambers.
My guess is that when it comes to build they are completely different things. I guess somenone from punishment for example can certify this.
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Posted By: FarmerWardy
Date Posted: 21 September 2009 at 11:39am
despoiler wrote:
I'm very interested in building a version of the USB bin with V18 1000s in, Voids own Stasys 8 bins are USB lookalikes so the design does work for them, can some1 give me a plan adaptation to work with the V18s pls, I think it is a case of getting the rear box volume right but I don't know enough to do the calculations I need to work it out myself so can some1 help me out pls | v-1000 works in bins like the 1850horn/martin wsx etc, with small rear chambers and longer horn lengths. i believe the 8 are similar in design to the usb [but use a void custom driver] the v-1000 will not work in either usb or stasys8 i assume.
stick to the drivers that the box was designed for. that way you wont be disappointed with the outcome.
------------- UnKnOwN Soundsystem
Void, Turbosound, Thunderridge
Bristol, UK
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Posted By: engel75
Date Posted: 19 February 2011 at 12:01am
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hello,
I got two ESW 1018 with 1200 watt RCF LF18N401 chassis. I want to add one USB and later a second one. Which >900 Watt chassis would work in an USB bass bin as kick bass (80Hz - 180Hz):
RCF LF18G401 RCF LF18G400 RCF LF18P400 RCF LF18N401
Regards, Flo
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Posted By: despoiler
Date Posted: 01 March 2011 at 10:10am
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Yeah, I ended up going with the 1850 cab for the V18-1000s I bought, health problems since mean I'm still trying to build them now :(
I've got FFA 2ch, 10k and 4ch, 6k amps and boxes full of 18",15" & 8" etc drivers just sitting waiting for the cabs to be built and I've been too unwell to do anything, if any1 in the East side of greater manchester area would be interested in helping with the woodwork and getting involved in running the sound system once built then feel free to pm me to discuss it.
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Posted By: tibowd
Date Posted: 13 September 2012 at 5:36pm
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heya dude i am looking for the plans for the usb so i can build one
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Posted By: tibowd
Date Posted: 13 September 2012 at 5:37pm
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heya dude i am looking for the plans for the usb so i can build one do u no were i can get them from
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Posted By: jackSpug
Date Posted: 13 September 2012 at 6:13pm
http://www.freespeakerplans.com/bass-cabinets/28-usb" rel="nofollow - http://www.freespeakerplans.com/bass-cabinets/28-usb welcome to the forum. where abouts in south wales you come from then?
------------- two people use this account
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Posted By: tibowd
Date Posted: 13 September 2012 at 8:02pm
Posted By: tibowd
Date Posted: 13 September 2012 at 8:06pm
Posted By: stargate
Date Posted: 17 September 2012 at 7:37am
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Hey guys, hoping someone can enlighten me real quick...so you know how the main horizontal brace is cut out of the main vertical brace..well i was just wondering what tool some of you guys are using to do this cleanly and precisely..i mean can do it with a table i assume so a jig or a router maybe?
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Posted By: stargate
Date Posted: 17 September 2012 at 7:38am
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Hey guys, hoping someone can enlighten me real quick...so you know how the main horizontal brace is cut out of the main vertical brace..well i was just wondering what tool some of you guys are using to do this cleanly and precisely..i mean can do it with a table i assume so a jig or a router maybe? also if those plans just above dont work for you, ive been usin these ones.. http://turkeyphant.nfshost.com/s/gallery.phant/speaker_plans/USB_Sub/USBPLANS.jpg?=big&size=original&fromthumbnail=true - http://turkeyphant.nfshost.com/images/gallery.phant/speaker_plans/USB_Sub/USBPLANS.jpg?action=big&size=original&fromthumbnail=true
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Posted By: stargate
Date Posted: 17 September 2012 at 7:39am
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same plans, i just couldnt get the ones on speakerplans.com to zoom in for me =)
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Posted By: dashaudio
Date Posted: 28 September 2012 at 7:09pm
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i hear that there are some USBS loaded with turbomax drivers how low do they drop can some 1 sim for me would be intresting to c the results
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Posted By: cncington
Date Posted: 28 September 2012 at 8:38pm
dashaudio wrote:
i hear that there are some USBS loaded with turbomax drivers how low do they drop can some 1 sim for me would be intresting to c the results
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they are extremely loud well built cabinets.....
------------- my middle name is......... IKEA
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Posted By: urilion
Date Posted: 18 October 2012 at 12:54pm
is it necessary to have or make 3 sub-scoops for using the usb cab? or can i do it with only 2 subs? what is the better option to have a good freq response when i play sub&bass freq ?
if i put 3 sub with the one usb or two es18's, i need more presure in mid section. is it correct? i think if i put 3 subs with usb or es18's, the mid section can be lower than the rest of the sound. for example 2 boxes with 2 x 12' minium? or someone more?
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Posted By: samoth
Date Posted: 05 December 2012 at 1:47pm
Hello people,
I`m new to this forum. I registered because we are building the USB bins, and i`m looking for some extra info. This forum allready proved very helpfull! Thnx!
So my question: I want to load them with Beyma 18P1000`s . Whats your view on this? Or anyone who has any experience with these drivers? Thnx!
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Posted By: bee
Date Posted: 05 December 2012 at 5:36pm
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i would allways as a rule load the cab with the designers choice, but in some cases there are better drivers to use..... ive heard a fair few usb's loaded with differant drivers, for me i would stick with the celestion or the turbo max drivers, but a few changes will be needed to fit the turbo max.....
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Posted By: jwdrain
Date Posted: 05 December 2012 at 6:47pm
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I have them loaded with Celestion 4080FD and they sound really nice, have a very tight sounding kick. Apparently the PD186s are good too, especially if you want them to drop a bit lower, but Ive heard you sacrifice a bit of the kick for that.
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Posted By: samoth
Date Posted: 07 December 2012 at 12:35pm
Thanks for the replies...
We reviewed our choise looked @ some measurements and we are gonna go with the PD 186 we think.
But can someone maybe explain me why it says `this may not fit` on the info (Page 3 on this topic). I`ve been trying to figur out why but without result... Is he refuring to the size or....?
Thanks,
Thomas
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Posted By: davey t
Date Posted: 07 December 2012 at 10:28pm
Try the fane 18b-800. It's light cone high black driver with fairly loose suspension will work well. Low qts. Depends how you want it to sound though. Heavier cone and higher qts gives a heavier slower sound with perhaps less efficiency. Lots of stuffing in the reap chamber will help your lower bass.
------------- Minirig portable soundsystem movement
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Posted By: davey t
Date Posted: 07 December 2012 at 10:29pm
That was supposed to say bl not black.. auto spell
------------- Minirig portable soundsystem movement
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Posted By: tomschute
Date Posted: 08 December 2012 at 8:53am
18b - 800 has now been discontinued and fane have no stock.
------------- Out to lunch... stableaudio@hotmail.co.uk www.stableaudio.co.uk Speaker Building Services
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Posted By: Keen
Date Posted: 08 December 2012 at 1:31pm
but it's only been out for like a year or two? that's shit
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Posted By: tomschute
Date Posted: 09 December 2012 at 10:58am
It is / was the 18b 600 just with the upped power spec like the XB / SB.
Fane have stripped down their range. I suppose focusing on fewer (Chinese assembled) models in the current climate makes financial sense.
Bit sad really.
Tom
------------- Out to lunch... stableaudio@hotmail.co.uk www.stableaudio.co.uk Speaker Building Services
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Posted By: Keen
Date Posted: 09 December 2012 at 12:45pm
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yeah, we'll have to wait for the box set to come out now.
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Posted By: mattymatasovich
Date Posted: 29 December 2012 at 8:33pm
Hi People,
Im new to this forum and I am after some advice, Im a deep house DJ and have started a new night and have been looking at sound systems for the venue. Our first night was a massive success apart from one school boy error, substandard sound system.
Ive been advised by a Producer/DJ who was performing on the night about a funktion One system but obviously the cost of these are phenominal and came across the USB Bass Bins and started to think about building my own system, as the reviews on these look superb.
The music we play is very bass heavy and i'm looking for maximum clarity in the Sub bass and was wondering if you could point me in the right direction on a couple of points.
Is there anywhere I can get flatpack USB bass bin cabs? The links on this feed no longer direct me to sites and what price are you looking at for these?
Which drivers do you think would suit the style of music we play an example of this is Darius Syrossian and Hector Couto - Metal if you you tube it to get a feel of what i'm on about.
And could you point me in a direction of speakers mid and tops i've been looking at MT121's or MT122's.
Obviously i'm an absolute novice when it comes to system design but would love to create a perfect system for my club night its h,old around 400 people what sort of size do you think I would need?
Hope you might be able to help me?? Thanks
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Posted By: jacethebase
Date Posted: 29 December 2012 at 8:59pm
Hello Mate
Unless you are a wood work type person I would save yourself a shed load of hassle and buy a branded system. By the time you have costed all the wood, Hardware and new suitable drivers you may as well go branded.
Can spend weeks building a cabinet loads of money on birch ply for the bloody thing to have a rattly panel.
Can buy TurboSound Flashlight for about £1200 - £1500 a stack and that is pretty much the Resolutions Fater.
------------- www.wedding-production.co.uk
www.stage2sound.com
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Posted By: jwdrain
Date Posted: 29 December 2012 at 10:04pm
For House USBs would be a good shout! I've got a pair of them I use above 4 invaders (invaders running on Sub, USBs handling the kick), but for smaller gigs I wouldn't hesitate to use them as a bass bin. When coupled up they'll go down to 40Hz, and you can run them up to at least 130 sounding clean. And the bass is really pristine! If you wanted the venue to hum 3 USBs a side loaded with Celestion 4080FDs would tear the place apart.
I also own MT121s, and I love them. Only thing thats wrong with them really is they only go down to 180, 165 at a push so there is a little gap between the USBs and MT 121s. If you were to go down the MT122 route though, they get down to 120, so you wouldnt have any gap with them.
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Posted By: mattymatasovich
Date Posted: 29 December 2012 at 11:38pm
Thanks for reply guys,
I Like the Idea that i've built the system myself and like to have a bit of a project so the idea of building the kit myself appealed to me, so if i could get the flat pack kits if they are they even available?? and build it myself would be more of an achievement and I would be able to custom the sound aswell, Ive seen on ebay 4 x MA828 with 2x pd186 drivers in each are they any good?, but dont really know which way to go. my thoughts were 2x usbs with 2x 4080's or the fane subs in each and a pair of MT122 then add another set of usbs as funds allow, any thoughts on which amps would suit this setup, within reason price wise..
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Posted By: b grade
Date Posted: 29 December 2012 at 11:38pm
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If it is your first build, I would suggest bass reflex. Maybe Tapped Horns if you feel really ambitious. Those more complicated horns get tricky. Also they are bigger and heavier than you probably imagine. Don't build anything that you can not bring through your doors or into whatever transport you use.
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Posted By: mattymatasovich
Date Posted: 30 December 2012 at 10:17am
Hi Im just new to this forum and have had 2 private messages on this subject but cant open them the link on my email just takes me to the forum home page do I need to change my settings to recieve these messages hope someone can help thanks
Thanks
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Posted By: djeddie
Date Posted: 30 December 2012 at 11:20am
You can't access PM's properly until you've reached 10 posts. But don't just fill posts with garbage as they'll be deleted anyway.
------------- Chas n Dave : it's like Drum and Bass but with beards. E=mc² ±3dB
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Posted By: mattymatasovich
Date Posted: 30 December 2012 at 11:35am
oh ok thanks djeddie
so there is no way of finding what they have messaged me till then??
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Posted By: jwdrain
Date Posted: 30 December 2012 at 12:27pm
I was one of the guys who PMd you, you have to have a minimum of 10 points (roughly 10 posts) before you can use the mail on here.
The only reason I PM'd you is because I was going to write to you about an alternative cab to the USB, so what I had to say didn't really belong in the USB thread! But heres my suggestion...
If your set on building your rig yourself, Id highly recommend building some cubo 15 tapped horns!! We built some and I can't tell you how happy we were with them. They were our first build, and whilst they were simple, they were still challenging enough to make building them a lot of fun. It was me and my best mate who are both students, we needed barely any tools, and the whole project was wicked :)
The beauty of them is that you don't need to get flat packs as such - all we did was send the plans to a wood cutting shop, they cut all the wood for us and all we had to do was stick it together! We also used MDF because it cost around £40 per box as opposed to £150+ if they were birch ply, but we've had them for 3 years and theyre still going strong! We loaded them with Eminence Kappa 15 LFs, which were £100 each, so after getting paint, handles, wire and speakon sockets/plates, it came to around £180-£200 per box. Not bad going at all, especially when you hear them!
We have 4 cubo 15s and 2 mt 121s, and sometimes when we can be arsed to carry some extra weight, we bring a USB too for a bit more kick! We use them at a jackin house night which caters to around 400 people and the promoter absolutely loves them - they beat the other sound guys reflex rig hands down, and he has 4 x 18s, 2 x 15s, and 2 x 12" + 1" tops. We havent been able to turn ours up the whole way yet! Read up on them - they have excellent reviews!
They look fantastic too - check out the link below for pictures of ours :)
http://www.facebook.com/media/set/?set=a.10151887790290722.883417.792165721&type=3
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Posted By: mattymatasovich
Date Posted: 30 December 2012 at 8:58pm
@JWDRAIN, thanks for the advice man!! They look wicked and a bit lighter might give them ago, btw the link you sent didnt work might be me though!! Is the eminence kappa 15 LFs the recommended driver for the Cab? and is it an extended box or standard design. Obviously i've never built any speakers before is there a spec for the construction, glued and screwed?? this might seem obvious but i usually only play the music not make the speakers.( Lucky my mates a joiner hey What amps are you running them through? I have a set of Mackie sa1521 active speakers at the mo is there a way I could run them,with the Cubo's until I could build some MT121's or 122's like I say Ive never had anything to do with system design and dont know if this is possible?
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Posted By: jwdrain
Date Posted: 30 December 2012 at 9:29pm
It might be because yo have to be logged onto Facebook to see the link.
A lot of drivers sound good in the Cubos, theyre really good from that respect! The Kappas are what we went with because they were cheap and its all we could afford at the time, and they sound great as well. We're in the process of upgrading the PD 1550s, we've got 1 working one (and one which got delivered but was broken :( ) and the one working one sounds equally epic! Not hand a chance to spank it yet, but Im sure itll sound good :) It depends how much you want to spend, all the recommended drivers are listed on the Cubo 15 plans on www.freespeakerplans.com
Yep, standard glue and screw jobby :)
As for amps, we used Matrix XT Series amps. They're beautiful :D but they are fairly pricey. If you were to get yourself an XT2000 for the Mid tops and an XT3000MF on bass duty you'll be laughing though.
Yeah its possible, they won't have the throw or spl that MT 121s would though. You could always just take the cubos into the club though, and stack them somewhere and use them along side the venues sound system just for a bit of extra bass?
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Posted By: mattymatasovich
Date Posted: 31 December 2012 at 12:33pm
Yeah mate ill check them out thanks.. the venue doesn't have a system we are having to hire one as the one we got last time was sub standard, The one we are gonna hire is a D&B Audiotecnik excuse spelling
4x D&B C7 Sub 2x D&B C7 tops 2x D&B D12 amps 2x D&B C6 Monitors 1x D&B D6 amps 1x soundcraft spirit 16 desk
Top quality gear but at £400 a night its a canny few more tickets to sell to cover the costs aswell as paying for the DJ's. so thought if we could buy some after each event eventually we could stop having to pull the extra overhead out, and have something to show for it,
the only concern I have is we dont want any distortion in the bass, as the music we play is all about the bass and dont know if we can achieve the clarity by making out own boxes?? Im guessing it would all depend on the drivers and the amp set up aswell right??
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Posted By: Keen
Date Posted: 29 January 2013 at 1:50am
Would a bridged CA12 be too much for a USB loaded with Fane 18B800's? And what are other people using to power their USB's?
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Posted By: Gramps
Date Posted: 28 March 2014 at 11:49pm
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Hello people!
Been a while, but I'm back in the land of sound systems and a little team of us are getting something ready for the summer.
We've just decided on building four USB's, to use as the kick section with some nice big long path horn subs.
Driver choice has come down to Eighteen Sounds, as we can source them fairly cheaply. Can anyone advise on whether any of these would work particularly well please - 18NLW9400, 18LW1400 and 18LW1250. The first two seem to fit the parameters needed a bit better, and look like they'll be able to manage a bit more SPL, which is very welcome!
Any thoughts welcome, especially from Davey, if you're out there :)
Many thanks in advance,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: corell
Date Posted: 29 March 2014 at 1:22am
http://www.audiofotos.eu/display-i1895bm9x3g.html" rel="nofollow">
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Posted By: Gramps
Date Posted: 29 March 2014 at 10:28am
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That's great, thanks for that buddy 
Just wondering - were those calculated in half, or free space corell?
The LW1400 certainly looks to be a good choice anyway.
Cheers,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: bee
Date Posted: 29 March 2014 at 11:53am
the lw1400 looks horrible a few db up at 90hz but this driver is far from flat and defo wont play about 150hz with out honking.... the nlw9400 driver looks a lot better but again will honk above 150hz...
------------- https://www.elements-audio.com
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Posted By: Gramps
Date Posted: 29 March 2014 at 12:39pm
bee wrote:
the lw1400 looks horrible a few db up at 90hz but this driver is far from flat and defo wont play about 150hz with out honking.... the nlw9400 driver looks a lot better but again will honk above 150hz... |
Oh.. That's not such good news!
How about the LW1250, does that model any better?
Many thanks,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: corell
Date Posted: 29 March 2014 at 2:32pm
bee, maybe you mismatched the two graphs? the lw1400 is the flat one in the simu.. your probably right when you are saying they will start to honk at 150hz or so, but if playing high up is a design goal, surely you wont choose a 18" (or is that only me?)
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Posted By: Gramps
Date Posted: 30 March 2014 at 12:43am
bee wrote:
the lw1400 looks horrible a few db up at 90hz but this driver is far from flat and defo wont play about 150hz with out honking.... the nlw9400 driver looks a lot better but again will honk above 150hz... |
Just wondering Bee - how is it that you can tell that both drivers are going to honk above 150hz? The LW1400 in particular looks pretty much ruler flat from 80-150hz, where it gradually rolls off, according to Corells sims. I've seen some pretty nasty peeks in response come up as you add more power into the equation on Hornresp - is that something to do with it..?
I'm going to sit down with Hornresp myself tomorrow, model the cab and try to see what's going on...
Cheers,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: Gramps
Date Posted: 30 March 2014 at 2:27am
corell wrote:
bee, maybe you mismatched the two graphs? the lw1400 is the flat one in the simu.. your probably right when you are saying they will start to honk at 150hz or so, but if playing high up is a design goal, surely you wont choose a 18" (or is that only me?)
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We need the cabs playing cleanly up to at least 150hz, to take some of the pressure off the 12" Mid section that we'll be using. Originally we chose the USBs because they've got a relatively high cut-off point, and we need the output of 18's to keep up with the subs. If they end up being honkers though, then there'll be trouble!!
A clean, warm sound with as much detail and punch is what we're after - the rest of the system is pretty special, and these kicks need to really hold it together. High SPL is needed too, and they'll be fed lots of nice clean power (1250w each).
Maybe Eighteen Sound simply don't make a driver that will work well. So, I guess that I should be looking at one of the recommended drivers..?
Cheers,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: ceharden
Date Posted: 30 March 2014 at 2:36am
Looking at those simulations, I'd be happy to choose either of those drivers for the cab. The variations between the two are less than 1dB.
Might be worth comparing the 18LW2400 too, it's supposed to be an improved version of the 1400.
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Posted By: corell
Date Posted: 30 March 2014 at 3:39am
did that and also the remaining 18" of 18sound. those two are the best according to hornresp ;)
IMO its not the particular driver which causes "honk", its the fact that using a heavy 18" in a bandpass that high is not their best application. Maybe you should look at a 15" design?
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Posted By: Gramps
Date Posted: 30 March 2014 at 1:26pm
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Thanks guys,
@ Ceharden - agreed, I'm not sure what the issue is - I thought Bee might have done his own sim's and come up with something that doesn't look as good.
@ Corell - I looked at using something like the HD215, and the output would simply not keep up with the rest of the system. If 15" drivers were used it would have to be in a more efficient FLH design, which we've decided against because they'd be too bloody large!
Cheers,
Gramps.
------------- To do a dull thing with style - now that's an art.
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Posted By: corell
Date Posted: 30 March 2014 at 5:01pm
why would they not keep up? because of power handling of the drivers? the results above (simulation) are easily achievable with a 15" design. and you can do a single 15" FLH in ~220l with a single fold.
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Posted By: Gramps
Date Posted: 01 April 2014 at 7:58pm
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The rest of the system is made up of very high efficiency FLH's, the sub's in particular are monsters, and 15" BP kick would be no use.
For some reason, a 15" folded horn hadn't occurred to me though - cheers for coming up with that solution, might just be a winner!! Something in a similar configuration to a Martin 215MK2 would work well for our purposes. Will give this some more thought and twiddling on hornresp..
Cheers,
------------- To do a dull thing with style - now that's an art.
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Posted By: corell
Date Posted: 01 April 2014 at 8:25pm
yes, something exactly like the martin 2x15" cabs was in my mind ;) PN me if you need help or anything
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Posted By: bee
Date Posted: 01 April 2014 at 8:48pm
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corell wrote:
bee, maybe you mismatched the two graphs? the lw1400 is the flat one in the simu.. your probably right when you are saying they will start to honk at 150hz or so, but if playing high up is a design goal, surely you wont choose a 18" (or is that only me?)
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ooops my bad the lw1400 is the better of the two..... plus one on a 15" if the goal is higher than 150hz
------------- https://www.elements-audio.com
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