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Old 26th July 2013, 07:32 PM   #1
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Default best woofer & cab for single DJ sub?

hey Guys,

I'm a DJ, and I'd like to build a sub for bringing to parties.

I need it to go pretty deep and pretty loud. Box size is not an issue.

I'm hoping to use Eminence drivers.

Any suggestions for a driver and plan would be greatly appreciated!

tt
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Old 26th July 2013, 08:38 PM   #2
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Quote:
Originally Posted by torontotech View Post
Box size is not an issue.
Liar!
OK, just kidding. But seriously, if I tell you 30 cubic feet like a refrigerator, then I think you may decide box size IS an issue.

And how about weight? Some super duper subs are easily over 100-150 pounds. Not easy for a DJ to hup around.

So tell us more about what you are doing and how you transport this stuff and crucially what main speakers you want to mate with (which can determine how high in frequency the sub needs to go).

Also, are you envisioning building a simple box with a hole in it? Or are you up for more advanced woodworking? The reason I ask is that a folded horn or tapped horn can be much more efficient, but trickier to build.
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Old 26th July 2013, 11:11 PM   #3
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thanks for the reply!

OK, so it would be nice to get a loud, deep, single sub that's also small, but I thought was pushing it, which is why I said box size not an issue.

To be honest, I have a wacky idea for a subwoofer that comes apart, with rubber gaskets and ratchet straps.. So a 30 cubic feet fridge wouldn't be bad!

Basically, it will only be one woofer at the party (not a stack) so I'm looking for something that will put out deep power, all by itself.

As for transport, we will have a van, and in regards to mating, it would be nice to have it with a couple small portable tops, say 12" and tweeter two ways : )

As far as simple vs complex, I know horns are more efficient (and harder to build right?) but I'm thinking reflex because in small rooms, people might not be far enough away for horns to sound good..

Any thoughts?
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Old 27th July 2013, 02:22 AM   #4
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You want to go low (infra-sound and high quality) and you want to shake a##. Don't go with the Eminence get this.
SB Acoustics SB42FHC75-6 15" Woofer
Quote:
best woofer & cab for single DJ sub?
torontotech,
You ask it my friend... The Eminence LAB 15 can not do this.
You need a 230 L tuned to 22Hz.
(230 Liters/8.1Cubic Feet)
You will need a 350/400 W@6.0 Ohms amp RMS.
Other joys, some of them considering lesser amps or bigger amps are sometimes mentioned in the forum.
Dayton Audio ST385-8 15" Series II Woofer, needs a ~VB = 138 L and amp power 180/200 W@7.0 Ohms.
Dayton Audio PA380-8 15" Pro Woofer, needs a ~VB = 186.5 L and power W(RMS) 50/60 W@8.0 Ohms.
This might give you a good idea where you go.
Other references with builds around mentioned in the forum along the years,
SCANSPEAK 32W/4878T00
STEREO INTEGRITY HT 15
DAYTON RSS460H0-4, also needs a ~230 Liters/8 Cubic Feet enclosure and does infrasound territory (15Hz) but needs ~1000W power.
TC SOUND LMS-ULTRA 5400
LAMBDACOUSTICS TD15H
BMS 18N862
GREAT PLAINS AUDIO 3154 GPA
This can give you a good perspective what to look at and where to chose from. At this moment I don't have any good info on the Eminence drivers unless someone says it in a sub form (<20Hz)... "Who said so?"
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Old 27th July 2013, 03:26 AM   #5
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I just saw that the price on the 21sw152 is down a little. Around $750
http://www.parts-express.com/pe/show...number=294-689

That could make a killer single sub that will get loud, go low and not really break the bank ($1000 for driver, Baltic birch, casters etc)

A bargain in the pro Audio world when we are talking about buying pre made subwoofers.

Just a thought!

You can bridge a qsc rmx 2450 into the single cabinet and it should make some noise.
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Old 27th July 2013, 04:38 AM   #6
OscarS is offline OscarS  United States
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PRV Audio 21SW4000 21" High Power PA Subwoofer Speaker 8 Ohm 294-2756

I'd give this a shot.

Then again, for that price, you can get two of these..

http://www.parts-express.com/pe/show...umber=294-2755

Last edited by OscarS; 27th July 2013 at 04:50 AM.
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Old 27th July 2013, 10:48 AM   #7
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As a last-but-not-least resource you can also try to by the extra ORION - 2NT 15 from another member noah.
First Home Subwoofer Build?
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Old 27th July 2013, 02:18 PM   #8
djk is offline djk
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"I'm a DJ, and I'd like to build a sub for bringing to parties.

I need it to go pretty deep and pretty loud. Box size is not an issue.

I'm hoping to use Eminence drivers.

Any suggestions for a driver and plan would be greatly appreciated!"

Two Kappa Pro 15LF-2, up to 1200W per cabinet, 3dB down at 35hz.

Cut list is for four cabinets, only one sheet and a scrap needed for one cabinet.

Click the image to open in full size.

COE PA 2009 Photo by dkleitsch | Photobucket

COE Crowd 2009 Photo by dkleitsch | Photobucket
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Last edited by djk; 27th July 2013 at 02:24 PM.
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Old 28th July 2013, 12:54 PM   #9
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Or use this driver, b&c 21sw115-8 for $555 shipped.

B and C 21SW115-8 21 inch Neo Subwoofer LF ND Driver 8 ohm - SavingLots.com

I've never ordered from this site, but josh ricci has, you can confirm with him.
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Old 28th July 2013, 03:57 PM   #10
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Default B&C 21SW115

That's a beast in need of 3000/4000 W RMS@4 Ohms.
B&C Speakers
pdf1
pdf2
Attached Images
File Type: gif B&C 21SW115 simul.gif (148.5 KB, 140 views)
File Type: gif B&C 21SW115 meas.gif (37.6 KB, 138 views)
File Type: gif B&C 21SW115 vented.gif (21.2 KB, 138 views)

Last edited by Inductor; 28th July 2013 at 04:16 PM.
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