RCA Voltage

[j_maxwell789]

Hi,

Basically I have a JVC Head Unit with 5v RCA preouts. I have a factory intstalled Amp that currently gets 2v from the factory Head Unit. I want to replace the Factory head unit with the JVC but I have to keep the existing amp.

My question is: Does the voltage of the preouts change with the volume the Head Unit is set to? Eg If I keep the volume low on the head unit, would the RCA voltage be less then the specs of 5v?

Any help would be great.

Cheers

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[smoka 10+ year member]

I'm not sure about your voltage question, but you can usually buy adapters for your aftermarket HU to use your stock amp.

Check out http://www.pac-audio.com

 

[TnT_Sounds 10+ year member]

I've heard from people saying the spec that says 5v pre-outs is only when you have the volume all the way up...

I dont see how this could be though.. PErsonaly I think if its rated for 5v pre-outs you will still have the 5 volt pre-out voltage even with the volume down.. Easy way to find out though is just stick a DMM to your RCA's and measure the voltage.

 

[j_maxwell789]

Yeah the multimetre was the first thing I tried, but it did seem so show the results I was expecting. I think I read something that to measure the voltage of RCA audio out you need a special tool.... mmmmm