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Suggestions for AMP and Box design around a cerwin vega 15" subwoofer

post #1 of 5
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Main Idea: Suggestions for AMP and Box design around a cerwin vega 15" subwoofer

I came across a cerwin vega 15" subwoofer at a local yard sale, its just the subwoofer though out of a d-9 box from what I can tell.

I am going to build a down firing or up firing likely ported self powered box for it.. I want suggestions on box volume and where to purchase a good circuit board amp I will be installing the board inside of the box or a separate compartment and using this as a single primary subwoofer for a home receiver setup. My receiver has ample power to run all 5 satellite speakers and has a sub out - which I want to put into this powered sub box build.






basically this is what I am going to end up with except built out of thick MDF and covered - I have built a couple strong car boxes and wired more than a couple of stereos so I have a good understanding of what I need to do.


1. Amp - I am not sure what this sub can handle full power but I would imagine I wouldnt need more than a 400 watt amp (or really good 200w) and likely that wont be turned up all the way.

2. Box build - Likely down firing because it looks clean and the sub wont collect dust, not sure what I will want for approx volume for this sub.. I know I could just build a 2.5-3ft box and it would sound fine but im sure someone knows these subs better than I do.
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post #2 of 5

Hey I know you posted this a while ago

 

Anyways have you tried parts expressed I think they have the things that you want for this build

http://www.parts-express.com/page/subwoofer/

 

I'm sorry I don't have any suggestion on any specific ones to buy. This is were I would look first though if I were planning on building a subwoofer

post #3 of 5
well without the T/S Parameters it is all for not.. Do you know the T/S Parameters or have a model number of the driver?? you can swag but it may not perform well..
Edited by The_Nephilim - 7/18/13 at 5:38am
post #4 of 5
I found this info on another forum, it looks like that woofer is used as the low end of a 3-way system. Based on this, the woofer should run from 29-500 Hz. It's more of a low end woofer but it will work for sub purposes. You should be good putting ~300 watts at 4 ohms into it. The woofer is a 152WR but I can't find any specs on it that would help you in building or tuning a box for it.

MODEL D-9

DESCRIPTION: 15” 3-WAY LOUDSPEAKER

FREQUENCY RESPONSE: 29 Hz –20 kHz
POWER HANDLING: 5/350 Watts RMS Min/Max
SENSITIVITY: 101 dB (1 Watt @ 1 Meter)
IMPEDANCE: 4 Ohms
LF DRIVER: 15” Die-cast Frame / 2” Voice-Coil (152WR)
MF DRIVER (upper): 6” Cone (M-6 or CM-6)
MF DRIVER (lower): 6” Cone (M6-H or CMR-H)
HF DRIVER: 1” Voice-Coil Horn Tweeter (CS-5)
PROTECTION: Circuit Breaker (Tweeter)/Fuse (Overall)
LEVEL CONTROLS: Tweeter & Midrange
CROSSOVER POINTS: 500/3500 Hz.
DIMENSIONS: 35” X 18” X 17.75” ( H X W X D )
 
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post #5 of 5
I'm actually in the midst of designing my own sub. The thing I've learned so far is that the design of the box depends almost entirely on two things. The subs specs (T/S), and the tuning frequency.

I'm using a program called "WinISD". Its a bit confusing at first, but as long as you know the T/S specs for your sub, you'll be good to go. Once you know the sub specs (tuning frequency and size), you can then start using another one called boxnotes. It does the cut list for your box, so you know how and where to cut. Makes it too easy smile.gif.

I'm working on a home theater sub (designed into an end table). Its currently looking like it will be around 9ft^3, and is tuned to about 17Hz. With the 300w BASH amp on it, it models right now with 112db or so, which means that I doubt you'd need tons of power either.

Check out hometheatershack.com for more info. They have a huge DIY sub building community, and I've been lurking there for quite some time. They also have a great sub database with the T/S specs for all sorts of things, so you might get lucky and find your driver in there.

Good luck smile.gif.
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