Help on gain settings


Unregistered guest
Aight, check this out, I went to the JL website and checked out their "Gain Setting" presentation thing. I dont have that sh!t, I dont know CD plays at whatever range that it said, and I dont have a volt meter.

So I was wondering, my HU volume goes to like 30 or 35 I think, I was thinking of turning the gain all the way down on the amp, turn the volume up to 20, let the song play and at the same time turn up the gain until its sounds like sh!t and then tune it down till it sounds perfect

Gold Member
Username: Carguy

Post Number: 3128
Registered: Nov-04
Go check your HU's manual and it'll tell you the RCA preout voltage. Most are 4v.
Once you have that info, set the amp's gain to whatever voltage it is.
So if your amp is 8v max, and 250mV min, then set the gain around half way for 4v HU.

Unregistered guest
Yea I took a look at the manual, it this what I am looking for, I took a pic

But what about what I said on my first post, can I do that?

Silver Member
Username: Illuminator

Post Number: 400
Registered: Apr-05
Sure, but it might be best to turn the headunit up 3/4 of the way (say 27) and then start adjusting the gain.

Unregistered guest
So yea I can do it the way I said before.

Unregistered guest
Can anyone else help

Unregistered guest
Is this true?
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