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pre out voltage or gain - Amplifiers - #1 Car Audio ...
https://www.stevemeadedesigns.com/board/topic/130132-pre-out-voltage-or-gain/#:~:text=Yes%20the%20%22level%22%20knob%20is%20the%20gain%20knob%2C,more%20than%20a%206v%20signal%2C%20and%20vice%20versa.
Pre-out voltages? | Car Audio Forum | CarAudio.com
https://www.caraudio.com/threads/pre-out-voltages.384779/
3) Pre out voltages are rated at MAX output, just like some amplifiers 4) You will almost NEVER see full rated preout voltage out of a HU when playing music. 5) 2v is plenty to drive your signal 6) A combination between high preout voltage and low output impedance from the HU typically results in a lower noise floor and higher S/N ratio
Car Audio: Pre-Out Voltages And Stopping Interference
https://caraudioreview.blogspot.com/2012/10/pre-out-voltages-and-stopping.html
The Pre-out voltage just helps to deal with the interference that you may pick up from the RCA cables. The higher the voltage of the Pre-out the better the signal will be at the amplifier end as more percentage of the output signal is music and less is interference. Think of it like diluting a drink. If you have 2v of Pre-out voltage and then 0.5v of interference. You will get an RCA …
Whats the actual difference in pre out voltage | Car Audio ...
https://www.caraudio.com/threads/whats-the-actual-difference-in-pre-out-voltage.515320/
Sep 8, 2011. 1,165. 7. Toledo OH. Feb 21, 2012. #1. So I realize that the pre out voltage is the voltage it sends through the RCA's and that having a higher voltage means more volts going through the RCA's and reaching the amp which means your amp has more to work with but Im just wondering how big of a deal that is as far as "loudness" gos.
Pre-Out Voltages - DiyMobileAudio.com Car Stereo Forum
https://www.diymobileaudio.com/threads/pre-out-voltages-more-preout-voltage-makes-my-amp-work-less-and-get-louder.96372/
Thus say we have a input voltage of 2V, you could set it to 10, or if you had a 5V pre-out, you would set it to 4. IF you had a 2V pre-out, then upgraded to a 5V pre-out without adjusting your gains you would be trying to make your amplifier run up to 50V, which is MEGA clipping. It will not make your amp "work less" or run cooler.
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