need advice on replacing a sub woofer - AVS Forum
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post #1 of 4 Old 10-08-2009, 08:32 AM - Thread Starter
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I have the Athena Technology Micra M225 Surround Sound system. The subwoofer on it has broken. Can anyone recommend a substitute so that I do not have to replace the entire system (looking to spend no more than $300, used is fine) Here are the specs:


Surround System:
Woofer: 8" (20.3cm) High-Excursion Injection Molded Poly Cone
Frequency Response: 30 Hz 100 Hz (±3 dB)
MOSFET Power Amplifier: 225 Watts 75 Watts (RMS)
Dimensions Standard:
(Height x Depth x Width) 16.7" x 14.2" x 9.4"

My amp is a Yamaha RX-V663:

Minimum RMS Output Power for Front, Center, Surround, Surround back
20 Hz to 20 kHz, 0.06% THD, 8 Ω ...................................... 95 W Dynamic Power (IHF)
Front L/R, 8/6/4/2 Ω ..................................... 135/165/195/240 W
Maximum Useful Output Power (JEITA) [Asia, General, China and Korea models]
1 kHz, 10% THD, 8 Ω ............................................................ .............................. 130 W
Maximum Output Power [U.K., Europe, Russia and Asia models] Speaker impedance setting: 8 Ω, 1 kHz, 0.7% THD, 4 Ω
............................................................ .............................. 145 W Dynamic Headroom [U.S.A. and Canada models]
8 Ω ............................................................ ........................... 1.4 dB
Rated Output Voltage/Output Impedance OUT (REC) .......................................................... 200 mV/1.2 kΩ PRE OUT ............................................................ ..... 1.0 V/1.2 kΩ SUBWOOFER (2ch Stereo, FRONT SP: SMALL)
............................................................ .................... 1.0 V/1.2


Thanks!
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post #2 of 4 Old 10-08-2009, 02:45 PM
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what are the specs on just the sub that blew?

Denon AVR 1709 + B&W 683s floors + B&W HTM62 center + Energy ESW-8HG Sub
Yamaha HTR-6050 + JBL Studio 530 + Studio 520C
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post #3 of 4 Old 10-08-2009, 02:48 PM
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Quote:
Originally Posted by Greg Ulate View Post

what are the specs on just the sub that blew?

I think they are:

Woofer: 8" (20.3cm) High-Excursion Injection Molded Poly Cone
Frequency Response: 30 Hz — 100 Hz (±3 dB)
MOSFET Power Amplifier: 225 Watts — 75 Watts (RMS)
Dimensions — Standard:
(Height x Depth x Width) 16.7" x 14.2" x 9.4"

http://www.athenaspeakers.com/products/m225-faqs/

Kal Rubinson

"Music in the Round"
Senior Contributing Editor, Stereophile
http://www.stereophile.com/category/music-round

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post #4 of 4 Old 10-08-2009, 03:02 PM
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Just to throw out a recommendation... you could try something like the ED A2-250 for $325. Ground shipping is free. This would be a substantial step-up from your old sub. Larger woofer, better amp, better frequency response.

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