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Old 3rd November 2010, 07:44 PM   #1
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Default Building a cheap high powered sub.

I am building a high powered subwoofer from the ground up and trying to do it as cheaply as possible. I intend to use this sub for DJ and all around party purposes, so it needs to be loud, compact, and still sound good.

I am using a PYLE PLCHW15 driver and 3/4 inch MDF.

The Loudspeaker Design Cookbook is my main source so far.

Using the book, I have decided the size of the box should be 4.57 cubic feet, but seeing as a lot of it is still over my head, thats all i really have. Any suggestions on shape, driver placement, etc.?

From the book I see one of the relevant parameters is something called the Qtc, is it something you 'pick' instead of measure?


Amp I am using: PYLE PWMA3003T 3000 Watts Hybrid PreAmplifier with AMFM Tuner/USB/Dual Wireless Mic: Electronics
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Old 3rd November 2010, 11:16 PM   #2
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If this is for real DJ purposes what you should be looking to build is a high power bass bin not a sub. That chest thumping that you hear and feel at clubs is mostly around 60 to 80Hz and most clubs roll off anything below 40Hz because it just muddies up things.

You should also look into Pro drivers such as the Eminence Kappa Pro, not cheap but they will stand up to constant high power use such as DJ / club work.

btw - that Pyle driver is meant for in vehicle use and uses the closed "cabin gain" of the vehicle for most of it's punch - a very bad choice for what you are trying to build......

Last edited by Cokewithlime; 3rd November 2010 at 11:22 PM.
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Old 4th November 2010, 04:16 AM   #3
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Well crap haha. I would say the most important thing is cheap. It's not that I don't want to spend the money, I just don't physically have the money, so cheap is the front and foremost concern. I already have this driver, so any suggestions that don't involve spending more money?
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Old 4th November 2010, 06:08 AM   #4
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Since Pyle doesn't publish any specs let alone the t/s parameters for that driver there is not much I can do to help. Put it in a car and it will probably sound OK, but try to design an enclosure for your use without the t/s parameters for that driver is just a crap shoot, sorry....

You could just try it in a 2 cu ft sealed box with medium amount of stuffing, won't be ideal but should be reasonable.

Last edited by Cokewithlime; 4th November 2010 at 06:23 AM.
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Old 4th November 2010, 08:07 AM   #5
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Location: Sheffield
The amazon site gives...

Fs:21.2, Qms:5.0, Qes:0.90, Qts:0.75, Vas (Cu ft)5.204

Still, I'd take these with as much salt as the 3000w power rating...

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"If you underspecify some resistors they can add extra phlogiston to the music mix. This gives a much more dramatic effect than refulgence, however superb it may be. Phlogiston can move a listener in a way that ordinary music cannot." - DF96
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Old 4th November 2010, 08:59 AM   #6
djk is offline djk
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Waste of money to even build a cabinet for this driver.
Candidates for the Darwin Award should not read this author.
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Old 4th November 2010, 01:25 PM   #7
tb46 is offline tb46  United States
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Hi pikipupiba,

If you already have the speaker on hand, you could measure the T/S parameters, and at least you would have a starting point. If you don't know how to do this try the google. If you haven't bought it yet, I'm with djk, and the salt mine.

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Old 4th November 2010, 04:38 PM   #8
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Yea, I do already have it, so there is no going back there. Now moving on to my other relevant question, do you pick of measure the Qtc?
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Old 4th November 2010, 06:11 PM   #9
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I meant to say pick OR measure
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Old 4th November 2010, 06:19 PM   #10
jbell is offline jbell  United States
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Here's what google turned up for T/S params:

PROVANTAGE: Pyle PLCHW15 Pyle Chopper 15 inch 3600W DVC Subwoofer
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