ebay woofers

sdad · 11th April 2011, 02:17 PM

Ebay has some very inexpensive 15"-18" woofers. Some sell for about $60-$80 /pair Anyone check out these speakers for fs, other TS parameters?

Josephjcole · 11th April 2011, 03:12 PM

There are a lot of woofers on ebay.... do you have a link to the woofers you are referencing?

sdad · 11th April 2011, 05:17 PM

PAIR (15") PRO AUDIO HOME DJ BLACK WOOFER SPEAKERS | eBay

Above is a sample. As you mentioned a lot of different ones. If there is a particular value, perhaps that could be pointed out

firechief · 11th April 2011, 05:21 PM

This kinda scares me "450 watts max (each)"

johnr66 · 11th April 2011, 05:34 PM

Quote:

Originally Posted by sdad

PAIR (15") PRO AUDIO HOME DJ BLACK WOOFER SPEAKERS | eBay

Above is a sample. As you mentioned a lot of different ones. If there is a particular value, perhaps that could be pointed out

Given the smaller magnet size, expect Qts to be high (~1). These drivers are hard to match into reasonable sized cabinets, so I avoid them. The foam surrounds put them in the ultra cheap category since most decent drivers don't use foam. Fs can be anywhere in the 20s or 30s.

djn · 11th April 2011, 10:33 PM

Go for the Eminence Alfa 15a sub drivers in "H" frames. Can get much cheaper than that and they sound great.

sdad · 12th April 2011, 12:13 AM

RE the 450w....That usualy is the representative size of the advertisers' imagination. About it. Divide by 10, probably much closer to the truth.

Thanks for the recommendation on Emminence spkr, will check into it.

djn · 12th April 2011, 03:25 AM

Here is a link to Martin King's paper about OB, "U", and "H" frames. Great read and cheap to build.

http://www.quarter-wave.com/OBs/U_and_H_Frames.pdf

.

11th April 2011, 02:17 PM	#1
sdad diyAudio Member Join Date: Jan 2011 Location: Grand Ledge, MI	ebay woofers Ebay has some very inexpensive 15"-18" woofers. Some sell for about $60-$80 /pair Anyone check out these speakers for fs, other TS parameters?

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11th April 2011, 03:12 PM	#2
Josephjcole diyAudio Member Join Date: Jun 2004 Location: Wisconsin	There are a lot of woofers on ebay.... do you have a link to the woofers you are referencing?

11th April 2011, 05:17 PM	#3
sdad diyAudio Member Join Date: Jan 2011 Location: Grand Ledge, MI	PAIR (15") PRO AUDIO HOME DJ BLACK WOOFER SPEAKERS \| eBay Above is a sample. As you mentioned a lot of different ones. If there is a particular value, perhaps that could be pointed out

11th April 2011, 05:21 PM	#4
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	This kinda scares me "450 watts max (each)"

11th April 2011, 10:33 PM	#6
djn diyAudio Member Join Date: Oct 2004	Go for the Eminence Alfa 15a sub drivers in "H" frames. Can get much cheaper than that and they sound great.

12th April 2011, 12:13 AM	#7
sdad diyAudio Member Join Date: Jan 2011 Location: Grand Ledge, MI	RE the 450w....That usualy is the representative size of the advertisers' imagination. About it. Divide by 10, probably much closer to the truth. Thanks for the recommendation on Emminence spkr, will check into it.

12th April 2011, 03:25 AM	#8
djn diyAudio Member Join Date: Oct 2004	Here is a link to Martin King's paper about OB, "U", and "H" frames. Great read and cheap to build. http://www.quarter-wave.com/OBs/U_and_H_Frames.pdf .

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