Very small rig for my shed
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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=18879
Printed Date: 26 March 2026 at 11:31pm Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com
Topic: Very small rig for my shed
Posted By: J Arthur Rank
Subject: Very small rig for my shed
Date Posted: 10 August 2008 at 7:52pm
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Have finally decided to build a tiny rig for my garden parties.
I started this avo with a reflex box, and am now wondering what to pop in it??
PD 154 possibly.
Yes it is made of 7ply, yes there are voids in it and no, my local b n q dont stock the good stuff, plus i like cheap and cheerful, so if i do mess it up, i havent wasted lots of quids on wood..
I shall put more pics on next week of the mid top, if the weather holds out!!!!
I am going to build a side at a time, just to see how it goes.
Must thank everyone on the site for their help and knowledge.
Ace... 
Decided on P Audio C15 500 LF.........
Is this just going to shake these boxes to bits?
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Replies:
Posted By: odc04r
Date Posted: 11 August 2008 at 1:25am
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You'll be alright with 7 core, especially if its just for mucking about in the shed and isn't going to have a hard life on the road. Just put decent bracking in it!
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Posted By: J Arthur Rank
Date Posted: 11 August 2008 at 11:54am
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bracking? or bracing?
Do you think it needs more than the port shelf and the brace below the shelf??
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Posted By: Deadbeat
Date Posted: 11 August 2008 at 12:01pm
I think that's bracing.
I'd bung in either a cross-style brace at the end of the cab or some corner pieces (like the 18sound reflex cabs).
I'd model it on winisd, plug in a few drivers and see what works! If it's just for very small workshop, etc use, don't limit yourself to the usual pro sound drivers.
BTW, is that the B&C plan?
------------- Away on extended leave.
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Posted By: odc04r
Date Posted: 11 August 2008 at 3:44pm
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Heh, yeah should read bracing.
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Posted By: J Arthur Rank
Date Posted: 11 August 2008 at 4:32pm
Posted By: J Arthur Rank
Date Posted: 11 August 2008 at 4:37pm
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Finished work early today, so knicked.... sorry borrowed.... a sheet of mdf to knock up an xm15 as a little test to see how easy they are.
To be honest, i don't like the shape and it seems a little big.
Are there any tried and tested ways to make it smaller and more box like for stacking.??
Would like to load something smaller with the SN15 and possibly 1.5 comp
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Posted By: Mark James
Date Posted: 11 August 2008 at 4:44pm
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bmd-40 with sn15b would be a good idea I should thing! Markk.
------------- insert silly sentence here
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Posted By: J Arthur Rank
Date Posted: 11 August 2008 at 4:50pm
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I know how to make it more box like....
Just make a box.
Genius.
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Posted By: minaximal
Date Posted: 11 August 2008 at 4:50pm
i hope you can still fit your router footplate on the front speaker baffle, to make the driver cutouts, glueing in beforehand with the recess could cause annoyance!
------------- Subs + Barges = :)
http://www.metaacoustics.com" rel="nofollow - www.metaacoustics.com
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Posted By: J Arthur Rank
Date Posted: 11 August 2008 at 4:54pm
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bugger!
Oh well, the dogs have got a new toy box to keep all their fluffy animals and parts of their fluffy animals in. 
Have just been messing with winisd  and have put in the SN15B driver.
It says a 30.8 litre box @ 72Hz, now do i put in the comp separate and add the two together to get my square mid top box?
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Posted By: J Arthur Rank
Date Posted: 12 August 2008 at 7:52pm
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Am looking at ordering my drivers tomorrow, and am just wondering as with everything else in life, do you really get what you pay for???
Eg - i am about to order a P Audio C15 500 LF for the sub, and an SN-15b for the mid top along with a BMD450S.
I feel that this is about the right money i want to spend per side for a little disco shed rig, but should i pay a little more and go for PD's? Will i regret saving a little bit of cash at this point, or should i just go whole hog and re-mortgage the house for the top drivers available??
Any thoughts???
Would i be better off with cheaper drivers and spending the extra money on experimenting with boxes???
I think what i am doing is delaying spending money.
I hate handing over cash, ... 
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Posted By: Dom
Date Posted: 13 August 2008 at 8:27am
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A SN15B sounds terrible if you play it up to meet a 1" driver. Use the SN15MB..
------------- "It sounded like a million fire engines chasing ten million ambulances through a war zone and it was played at a volume that made the empty chair beside me bleed."
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Posted By: ceharden
Date Posted: 13 August 2008 at 8:59am
One of my first pairs of cabs were an SN15MB with a B&C DE250 in a wedge cab. Advantage with the DE250 is that for a 1" you can cross over quite low, I went for 1.6kHz. Not many 1" CD's are happy with that. Trying to match a 15" and a 1" is never going to be perfect but with the right drivers you can get away with it.
Much better if you can is to go for a 1.4" CD, only needs to be one of the smaller ones with a 2.5" VC eg B&C DE610 but it means you can comfortably cross down at 1.2-1.5kHz before the 15" starts sounding too rough.
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Posted By: J Arthur Rank
Date Posted: 13 August 2008 at 5:51pm
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Thanks for that guys.
At the end of the day, theres a lot of folk on here who have listened to a lot of combos of drivers, and hopefully i can learn from other peoples mis-haps and dodgy purchases.
Much appreciated, BTW i still need to know, if looking at winisd and box volumes, to make a mid top, do i put the drivers in separate and then add the volumes together???
I can only put one in at a time, could be doing it wrong?
Also is it easier to match up 12's with 1's than 15's??
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Posted By: Charles_V
Date Posted: 14 August 2008 at 5:34pm
take note:
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Posted By: Deadbeat
Date Posted: 14 August 2008 at 5:39pm
The matching of drivers depends on the drivers themselves, some 15s can run up to 1s well, some can't.
charles, are those flightcases? very cool.
------------- Away on extended leave.
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Posted By: J Arthur Rank
Date Posted: 14 August 2008 at 7:19pm
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Charles,
i am going to see LX @ the disco shed on saturday....!! ACE  
My disco shed is more a workshop, come dancefloor, come DJ booth and is static unfortunately.
Let me have me dinner and i'll take a photo of my shed 4 ya.
Gimme 20 mins.
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Posted By: J Arthur Rank
Date Posted: 14 August 2008 at 8:02pm
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Heres my shed.
Dance floor (when emptied)
DJ Booth
Studio Bench
Opened up with DJ / serving hatch aloft
Makeshift studio in back bedroom whilst dusts flying down the shed. (wife not happy)
The shed is effectively a reflex box, ported where the roof meets the structure.
I wondered about a box of 6 15" drivers on the serving hatch, but that would just be silly. But when you fire up some small monitors in there, boy can you hear it from inside the house. A bit of dampening here and there and its going to be a wicked studio. I had great fun building it from a pile of 3x2 and shuttering ply, just an idea and a dewalt. 
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Posted By: J Arthur Rank
Date Posted: 14 August 2008 at 8:07pm
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photobuckets not working
now it is, can't have any swear works in the title.
All my piccys go in the random sh..1..te folder.
lesson learned. 
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Posted By: wafflesomd
Date Posted: 14 August 2008 at 8:28pm
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You running mono with this?
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Posted By: J Arthur Rank
Date Posted: 14 August 2008 at 8:37pm
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Yeah, will be to start, just as and when money dictates.
Next month i should be able to afford the other drivers for the next mid top.
Why??
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Posted By: wafflesomd
Date Posted: 15 August 2008 at 6:04am
Just wondering. Mono would be, bleh.
I really like those top builds though, what plans are they.
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Posted By: Deadbeat
Date Posted: 15 August 2008 at 7:39am
Ahh, a nice little install I see. An idea would be to reinforce the structure over the next few days and properly install some bass reinforcement, you could use an empty cavity like a corner for a cheap infinite baffle install, or mount some cigar-shaped or sonotube tapped horns in, these options can be quite cheap (drivers can be cheaper than C15s...) and go loooowww.
Then you can build another wedge, put both on stands as far apart as you can, turn on the amps and everything, and watch as people are fooled int thinking that all the bass is coming from those cabs.
Bit of soundproofing/room treatment and you've got yourself a very multipurpose studio!
Waffles, those wedges are the result of a bit of quick calculation within winisd after drawing out a basic box plan and volume.
------------- Away on extended leave.
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Posted By: J Arthur Rank
Date Posted: 15 August 2008 at 7:19pm
Tee Hee
Someone can see my tinkering in the shed vision....
The 15" sub is going to sit under the workbench, ive already sound proofed the area to the left and back of it. Corners for bass??, i like it, something for the outside needs to be thought out, should there be a multitude of non paying gatecrashers??!!
BTW, just got an LED moonflower light for my birthday, shall try it out when night falls over my lawn, canrn't wait till dusk!!
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Posted By: noobsound
Date Posted: 16 August 2008 at 9:21am
wafflesomd wrote:
Just wondering. Mono would be, bleh.
I really like those top builds though, what plans are they.
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i think the tops are the stipe design flor monitor/ top all in one 
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Posted By: Deadbeat
Date Posted: 16 August 2008 at 11:54am
nah, just reread the posts, they're Rog's XM15s.
------------- Away on extended leave.
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Posted By: J Arthur Rank
Date Posted: 16 August 2008 at 12:29pm
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Yes XM15's.
Knocked em up in a sheet of free MDF to see how the angles work...
Not very well, so need to do my maths again!!
Would rather a square mid top than wedges, but cannot work out how to do the 2 different drivers in winisd. Any one know??
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Posted By: Deadbeat
Date Posted: 16 August 2008 at 1:15pm
You only calculate the bass driver, the most you need to bother with the horn + comp is keeping in mind the volume taken up in the box.
------------- Away on extended leave.
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Posted By: J Arthur Rank
Date Posted: 16 August 2008 at 6:41pm
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Ahhh.... brilliant.
Cheers Deadbeat. 
Manly hug of course.
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