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15" 8" 1"

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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=94817
Printed Date: 27 March 2026 at 4:05am
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Topic: 15" 8" 1"
Posted By: Calculus
Subject: 15" 8" 1"
Date Posted: 21 February 2016 at 2:24pm
any decent plans kicking around for a 15" 8" and 1" box with one of each. I could design one myself but if there's a plan already I'd like to see it. Thanks

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Always a compromise, You can't have everything...

Where would you put it all.



Replies:
Posted By: nojunk
Date Posted: 21 February 2016 at 2:48pm
limmer p3 - but it's a 6.5" instead a 8" ...


Posted By: corell
Date Posted: 21 February 2016 at 4:51pm
Mikey sells 15" 10" 1" with wondefull GFK flares as flat pack.
http://forum.speakerplans.com/what-are-these-white-c4s-speakers-pics_topic36670_page15.html


Posted By: tv00
Date Posted: 21 February 2016 at 8:30pm
Add 25% to all measurements in the 12/8/1 Orbit 4 plan and it becomes a 15/10/1 plan:-)


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Posted By: bass*en*mass
Date Posted: 22 February 2016 at 4:08pm
have a look at bluearans new 3way tops? What are your exact requirements calculus?


Posted By: Calculus
Date Posted: 22 February 2016 at 8:22pm
I have the drivers for 4 already. jbl 2226 15" for kick/midbass,  b&c 8pe21 for upper mid and BMS 1" for tops got faital horns flares. and got 4 crossovers for the 8" & 1" section. they are to go above 6 invaders. I started making some trap reflex boxes today just for a test. But not sure if thats where what i'll stick with. Thanks for the suggestions though guys i will investigate further. 



-------------
Always a compromise, You can't have everything...

Where would you put it all.


Posted By: Calculus
Date Posted: 22 February 2016 at 8:39pm
The thing about the blue aran sonitus cabs is the price of the drivers. I'd have to sell the stuff I've already got to buy them. Then when you include all the drivers bought new you have quite a expensive box. Quite an expensive unbranded box for the price you could almost buy something tried and tested for. I'd like to put the 8" on a horn but the way I'm building these test boxes i could retro fit a 8" horn section onto them. The sonitus 8" sections do look nice but I would only get two for the price i'd get for the 8" drivers i already have. 

I did have a plan for a trap box with a folded kick section but it became a massive box and the builder who was making them for me let me down a bit. So I've been left with the pile of drivers. Plus I dont have a proper workshop anymore to do any complicated builds.

So I knocked up a quick plan today and started building with some ply I already had. I'll let you know how I get on. If I can find some well suited 8" horn moulds at a reasonable price then i may included them, I was looking at the RCF 8" phase plug horn they have on blue aran and wondering if it might fit the bill with one or two modifications.



-------------
Always a compromise, You can't have everything...

Where would you put it all.


Posted By: tv00
Date Posted: 22 February 2016 at 8:51pm
But the horns are CHEAP WITH drivers included! Or considers XT8 mk3 :-)

6 invaders -whow! -What are they loaded with?
Is it the ones from freespeakerplans?


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www.facebook.com/babysoundsystem


Posted By: bass*en*mass
Date Posted: 22 February 2016 at 9:10pm
i doubt there is a plan for a cab matching your exact components..

2226 should be fine in a compact reflex cab, 8" with tiny sealed chamber should be fine too, a simple wooden horn like the ones used in early xtro cabs should be easy to calculate and build too.
not sure about the passive xovers though, unless they have been custom made for that particular combo i suggest going fully active will help to process all as necessary..
the rcf horn might not be suitable for your cone due to dedicated phase plug design, might be wrong, best to ask Andy or Tom at StableAudio?



Posted By: Andy Kos
Date Posted: 23 February 2016 at 2:15am
Originally posted by Calculus Calculus wrote:

The thing about the blue aran sonitus cabs is the price of the drivers. 

We have to have a 'list price' to start with on any product, but there is generally some scope for deals. Its very hard to work your way up if you start with the bottom price. Its much easier to work down.

We did select some high quality components for the HF section, you can substitute cheaper components and still get a good result. The Beyma CP385Nd nudges the price up a fair bit, in my opinion it's worth it - I realise others may not share the same opinion so there are other options. For example if you are happier with lower power, the Faital Pro HF100 does a good job, and its not at all expensive.

The design will work with most 15" drivers that are designed for mid-bass, I've tested the box with numerous 15" drivers and had more than acceptable results - we chose a few of our favourites to make some packs up with, but it is really easy to chop and change parts. The P-Audio 15BM-500B works fine, as do several Precision Devices drivers. Most of our choices were higher power 15s as they will keep up with the 8" better. We were getting sensitivities of around 105dB on the mid-horn, if you chuck a 400W 15" in the box it will run out of steam well before the 8", but that doesnt mean you cant do it, we were just aiming for maximum power handling in this design.

I have been trying to find time to publish all my test results, but not managed to find it yet! I will get this done soon, and this will include a few more options on the 15" and comp driver.








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just a guy with a warehouse and a few speakers... www.bluearan.co.uk


Posted By: ceharden
Date Posted: 23 February 2016 at 8:22am
The 2226 would work fine in the low in that style of cab and your BMS/Faital combo would do the HF if you built something similar yourself rather than from the flat pack.  You'd have to sell the 8PE21's if you went for the Sonitus horns because the drivers are included and the B&C's wouldn't fit but it's a much easier solution than trying to design/build your own 8" flare.


Posted By: tv00
Date Posted: 23 February 2016 at 1:22pm
Or as I said the xt8 mk3 where the 8pe21 fits, probably not cheaper.


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Posted By: Calculus
Date Posted: 23 February 2016 at 11:30pm
Originally posted by Andy Kos Andy Kos wrote:

Originally posted by Calculus Calculus wrote:

The thing about the blue aran sonitus cabs is the price of the drivers. 

We have to have a 'list price' to start with on any product, but there is generally some scope for deals. Its very hard to work your way up if you start with the bottom price. Its much easier to work down.

We did select some high quality components for the HF section, you can substitute cheaper components and still get a good result. The Beyma CP385Nd nudges the price up a fair bit, in my opinion it's worth it - I realise others may not share the same opinion so there are other options. For example if you are happier with lower power, the Faital Pro HF100 does a good job, and its not at all expensive.

The design will work with most 15" drivers that are designed for mid-bass, I've tested the box with numerous 15" drivers and had more than acceptable results - we chose a few of our favourites to make some packs up with, but it is really easy to chop and change parts. The P-Audio 15BM-500B works fine, as do several Precision Devices drivers. Most of our choices were higher power 15s as they will keep up with the 8" better. We were getting sensitivities of around 105dB on the mid-horn, if you chuck a 400W 15" in the box it will run out of steam well before the 8", but that doesnt mean you cant do it, we were just aiming for maximum power handling in this design.

I have been trying to find time to publish all my test results, but not managed to find it yet! I will get this done soon, and this will include a few more options on the 15" and comp driver.






I understand why the prices are what they are and they are probably fair. But it just doesn't make economical sense for me at the moment, they look like great cabs and exactly the kind of thing I'm after but for the fact I'd have to sell alot of components at knock down prices that I already have in order to build them. If I bought the whole pack though you are talking a price for a pair new that is the same as for example a second hand pair of turbo floodlights. 

If I'd known about them when I was collecting components it would've swayed me towards them though.



-------------
Always a compromise, You can't have everything...

Where would you put it all.


Posted By: Calculus
Date Posted: 23 February 2016 at 11:34pm
Originally posted by tv00 tv00 wrote:

Or as I said the xt8 mk3 where the 8pe21 fits, probably not cheaper.

I wasn't aware these were even available anywhere.


-------------
Always a compromise, You can't have everything...

Where would you put it all.


Posted By: tv00
Date Posted: 24 February 2016 at 12:50am
Mk3 is out, there's a recent thread around on it, ask mykey


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www.facebook.com/babysoundsystem


Posted By: Andy Kos
Date Posted: 24 February 2016 at 7:17am
Originally posted by Calculus Calculus wrote:


I understand why the prices are what they are and they are probably fair. But it just doesn't make economical sense for me at the moment, they look like great cabs and exactly the kind of thing I'm after but for the fact I'd have to sell alot of components at knock down prices that I already have in order to build them. If I bought the whole pack though you are talking a price for a pair new that is the same as for example a second hand pair of turbo floodlights. 

If I'd known about them when I was collecting components it would've swayed me towards them though.


I appreciate that if you are part way through, it's not easy to change. However - if you wanted a solution, you could probably work with it.

1. Use whatever 15" drivers you already have. The 15" runs from around 100Hz to 400Hz - so providing what you have is reasonable - it will do the job. The way the box is tuned, it's not designed to give sub - it's intended for minimum crossover point of 80Hz. So providing you have something thats a mid-bass type driver it would work in the box.

2. HF can be modified, although the flatpack kits are pre-cut for the TD164, its not impossible to change this with a jigsaw if you really need.

3. Other parts of the design already worked out for you: curved front grill, curved grill supports, curved top and bottom panels, central brace, top divider.

4. Trap angle already worked out so that 2 cabs per side can stack nicely and give good horizontal dispersion.

5. Sticking point may well be the mid horn - you already have the 8PE21. These wont drop straight into the mid-horn we have as the phase plug doesnt line up properly - enough ingenuity and you might be able to sort this. I have no idea if mykeys horns will fit this - as I dont know anything about the size/shape of the mk3 - but you might be able to shoehorn them in.

If nothing else, the design we've done might help you along the way - when I get a bit of free time I will bung the design up somewhere.

and yes, you are right... the whole pack price new isnt 'cheap' - it wasnt intended to be, especially with the high power premium neo packs. The Beyma 15P80Nd, with neo horn, TD164 and Beyma Cp385Nd does have quite a hefty price tag - BUT the whole box finished weighs only 33.5kg and have a power handling of 1000W - you get what you pay for. Like I said though... deals are available...

 


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just a guy with a warehouse and a few speakers... www.bluearan.co.uk


Posted By: tv00
Date Posted: 24 February 2016 at 9:52am
xt8 mk 3 should fix the 8pe21 I belive, after all I think it's the successor to mk2, mk1 & the xtro wood horn that all run this driver but ask Mykey. I didn't do an A/B comparison yet, but I believe the xt8 drops lower, perhaps also higher.

That being said I think it cost around the same as a sonitus horn with driver and you should be prepared for cutting in them, mine were a little deformed and didn't fit the cab they were intended for.


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www.facebook.com/babysoundsystem


Posted By: Calculus
Date Posted: 24 February 2016 at 1:54pm
Originally posted by Andy Kos Andy Kos wrote:

Originally posted by Calculus Calculus wrote:


I understand why the prices are what they are and they are probably fair. But it just doesn't make economical sense for me at the moment, they look like great cabs and exactly the kind of thing I'm after but for the fact I'd have to sell alot of components at knock down prices that I already have in order to build them. If I bought the whole pack though you are talking a price for a pair new that is the same as for example a second hand pair of turbo floodlights. 

If I'd known about them when I was collecting components it would've swayed me towards them though.



5. Sticking point may well be the mid horn - you already have the 8PE21. These wont drop straight into the mid-horn we have as the phase plug doesnt line up properly - enough ingenuity and you might be able to sort this. I have no idea if mykeys horns will fit this - as I dont know anything about the size/shape of the mk3 - but you might be able to shoehorn them in.

If nothing else, the design we've done might help you along the way - when I get a bit of free time I will bung the design up somewhere.
 
Is the mid horn available without the driver as this could well be the sticking point  deciding factor. Also how should i contact you to discuss the potential of 4 with hardware and the mid-horns should this be possible.  I've just checked and the top horn I have is slightly bigger so this modification should be fairly easy to do with a router and/or jigsaw.
 The jbl 2226 15" drivers are well suited to that kind of design so I have no worries there.




-------------
Always a compromise, You can't have everything...

Where would you put it all.


Posted By: 1TrueTree
Date Posted: 24 February 2016 at 2:10pm
Interesting thread and interesting offering from you Andy. Sorry calculus I don't think I can offer useful advice on your situation, I've been pursuing a similar goal for some time and seem to be great at letting good deals on midhorns slip through my fingers into other lucky beggars hands!

Maybe ask bee/Ben about his 6.5" pd loaded mid horn he was developing? But I expect that wouldn't be cost effective considering you have the 8pe21 already and doubt the 2226 would have the qualities to meet the 6.5 at 800hzish(800/1k-5/6k bandwidth if I remember correctly).

Sorry if this is shortsighted but could you not construct a cab with your components with just a sealed box for the 8pe21 with the potential of modification for fitting xt8 mk3 when they are available? No doubt this is the driver Mykey designed the mk3 around.

Maybe check around your local area and see if any tms/tse turbo sound cabs in sorry states are about as a member has two of the 10" mid drivers for sale.

Andy can you provide t/s for the sonitus driver or pictures of its construction? Also what are the recone options? Cheers man, maybe you need to offer badges/printed connector plates and custom tuffcab colour to cement your place in audio history/improve resale value. Just a thought I haven't considered the implications:)

Best of luck calculus!

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Posted By: Andy Kos
Date Posted: 24 February 2016 at 8:13pm
The idea of the sonitus 1581 cabinet design was to just encourage people to build DIY boxes, and to help people with designs based around an 8" horn. I know there are lots of people that are keen to build stuff, but dont have the resources to test and prototype - so we did that bit.

I have given the 8" horn quite a bit of stick - I have the 8" and 1" with passive crossover running off a PKN XD4000. It was loud to the point of being excruciating with no sign of anything blowing. I dont have recone kits in stock now - but should anyone manage to blow one I will make replacement 8" drivers available. The driver on it's own is likely to be around £50-60  - so not really worth reconing.

I dont have T/S parameter for the ferrite at the moment, but I think I have the Neo (I hope these are the right ones!)

Fs 197Hz
Vas 2.6l
Qts 0.67
Qes 0.76
Qms 5.7
Xmax 2.5mm
No 2.5%
SPL: 100dB 1W/1M :: around 106dB 1W/1M in the horn
Power AES: 150W (but I have pushed WAY harder than this)






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just a guy with a warehouse and a few speakers... www.bluearan.co.uk


Posted By: MarjanM
Date Posted: 24 February 2016 at 8:59pm
Guys, for the price point that Andy's box is a steal.

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Marjan Milosevic
MM-Acoustics
www.mm-acoustics.com
https://www.facebook.com/pages/MM-Acoustics/608901282527713


Posted By: KidCreole
Date Posted: 25 February 2016 at 7:55am
Originally posted by tv00 tv00 wrote:

Or as I said the xt8 mk3 where the 8pe21 fits, probably not cheaper.
XT8 mk3 is £110 + £10 shipping


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Mykey Wattco


Posted By: snowflake
Date Posted: 21 November 2016 at 11:15am
are there any dispersion plots for the sonitus driver/flare?


Posted By: citizensc
Date Posted: 21 November 2016 at 11:29am
There are some linked on this page... Hope this post doesnt break rules.

http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer" rel="nofollow - http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer


Posted By: snowflake
Date Posted: 21 November 2016 at 2:51pm
Originally posted by citizensc citizensc wrote:

There are some linked on this page... Hope this post doesnt break rules.

http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer" rel="nofollow - http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer

thanks, assume neo version is virtually identical

good product but only really usable from 400Hz-2.1kHz


Posted By: Andy Kos
Date Posted: 21 November 2016 at 3:11pm
Originally posted by snowflake snowflake wrote:

Originally posted by citizensc citizensc wrote:

There are some linked on this page... Hope this post doesnt break rules.

http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer" rel="nofollow - http://www.bluearan.co.uk/index.php?id=SONMR8XT&browsemode=manufacturer


thanks, assume neo version is virtually identical

good product but only really usable from 400Hz-2.1kHz


Neo virtually identical, very slightly different in the lower region, but not much in it, certainly nothing to get excited about.

I usually run them from 400hz to 2.5khz and it works fine for me. The dip the response shows just above 2khz isn't as apparent in 'real life' as the test data suggests, partially depending on crossover slope and comp driver you use it with.

I have run them 350hz to 3kHz without significant problem, but ends up needing some EQ between 2k and 3k.

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just a guy with a warehouse and a few speakers... www.bluearan.co.uk



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