difference between preamp outputs.

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=128599
Printed Date: May 17, 2025 at 7:24 AM

Topic: difference between preamp outputs.

Posted By: gstacks
Subject: difference between preamp outputs.
Date Posted: September 22, 2011 at 12:36 PM

Whats the difference between a 2v and 5v preamp outputs?

Replies:

Posted By: jmelton86
Date Posted: September 22, 2011 at 1:44 PM

About 3 volts LoL

But really, supposedly, preamp outputs with higher output voltage (in the example: 5v) allow for you to have the gain (on the power amplifiers) turned down lower -than if you were using 2v preamp outputs, which equates to less of a signal to noise ratio (s/n) introduced by the power amplifier.

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

Posted By: soundnsecurity
Date Posted: September 22, 2011 at 6:09 PM

a higher voltage output will also allow you to run a longer rca if necessary, like if you were running an amp to the back of an RV or school bus, and still have good voltage at the amp.

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Posted By: jmelton86
Date Posted: September 23, 2011 at 8:28 AM

*EDIT* "equates to MORE of a signal to noise ratio -not less LoL

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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001

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