Bridging a 4 Channel Amp

Printed From: the12volt.com
Forum Name: Motorcycle Electronics
Forum Discription: Installing Stereos, Alarms, Remote Starters, Lights, Garage Door Openers and other electronics on motorcycles.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=77892
Printed Date: May 11, 2024 at 12:01 PM

Topic: Bridging a 4 Channel Amp

Posted By: Jweb
Subject: Bridging a 4 Channel Amp
Date Posted: May 16, 2006 at 7:57 PM

I have a Lightning Audio 4 channel amp that is bridgeable but was told it can only be bridged if all 4 inputs are used. My stereo is a 4 speaker, 2 channel system and I had planned on bridging it. Since the stereo only has a right and left channel to input into the amp, can the output be bridged? Does anyone know about this?

Replies:

Posted By: CorradoG60
Date Posted: May 16, 2006 at 8:11 PM

You can always us a RCA-Y adapter to split your two low level signals to each amp channel.

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The FLUKE Guy.

Posted By: Jweb
Date Posted: May 17, 2006 at 8:42 AM

One thing I forgot to mention...this is on a Goldwing motorcycle factory radio and until I can figure out how to get a low level, high impedance output from it, I am forced to use the high level, low impedance speaker outputs. I don't really understand why I can't just wire the speaker outs to all four inputs on the amp but a tech at LA said there is no way to bridge the outputs with this setup. Seems like there should be a way to double the outputs to drive the four amp inputs without changing the impedance or whatever the problem is. Thanks