5v vs. 8v pre out, big diff?
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=80814
Printed Date: May 03, 2025 at 9:09 AM
Topic: 5v vs. 8v pre out, big diff?
Posted By: downstarinc
Subject: 5v vs. 8v pre out, big diff?
Date Posted: July 27, 2006 at 2:53 AM
ok i got an eclipse 5444 5v deck and a new 5000 8v deck...will it make a big difference from 5 to 8v preout? what would it actually change? i know the more volts the better but why? oh yah, i am running 2 jl 1000/1's, 1 450/4, 2 13.5 w7s. Thanks!
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jl audio..nuff said
Replies:
Posted By: haemphyst
Date Posted: July 27, 2006 at 8:43 AM
Not a noticeable difference. However, the 8000 will have better, cleaner outputs, so stick with that deck.
The supposed difference with a higher output voltage will allow you to turn the gains on your amp down further, increasing the S/N ratio of the system.
To me, though, the output impedance is more important that output voltage. The 8000 deck is, I believe, a 55 ohm output, which will DRASTICALLY reduce the amount of noise that can be introduced into your system.
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
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