Contour Enthusiasts Group Archives Forums Modifications Audio Factory amp for sub?

Hello, I was wondering if the factory amp can be bridged to power a small subwoofer, but bypassed for the other speakers. Is this even possible? Not any kind of audio expert here, so any advice is welcome, thanks.

that is not a very good idea Darkheart, the factory amp couldn't push a feather if it wanted to. I would recommend an aftermarket amp. you can find cheap audio equipment everywhere these days, if you are serious about your audio, and want a sub, you will need a non-factory amp. Check your local "tweeter" store. They have all kinds of open-box/demo product sales.

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AJ M.
Mmies8646@rowan.edu
take away capital M above for email
http://elvis.rowan.edu/mieskola

MODS:
Cerwin-Vega Door Speakers
JVC CD Head Unit
JBL GTQ220 Amplifier
Sony 2540 Amplifier
Kenwood 8" Dual Voice Coil Sunwoofer
JL Audio 8W3 Dual Voice Coil Subwoofer

this would cost you almost as much as buying an inexpensive aftermarket amp to power the sub. the factory premium amp is not ready to be bridged as it stands, but you could put together a little circuit that acts as a bridge to keep the signal stable. then you will need some kind of low pass crossover to keep the high frequencies from being played through the subwoofer. you should also build a small impedance matching circuit into this crossover to keep the amp from trying to drive too much power to the sub. it might clip quite readily. and after you have done all of this, you will have a modest (at best) power supply for marginal bass...since i'm sure the factory amp is not rated through all of the bass frequencies. it probably nominally operates until 40 or 50 Hz.

i say, go aftermarket and scrap the factory rig.

the factory amp might be useful for powering a center channel speaker for use in a surround sound setup or low volume "staging" tweeters to mount high in the A pillars or in the dash.