Setting Amplifier Gain Control

[kickerman]

nice find. this will help many people.(including me!)

[Cdizzle]

So you make sure that the DMM is set to AC and not DC?

[Slinky]

Yes

[Coolwazabi]

if ur HU puts out 8v then subtract 8 from the number ?

[Guest MegaloManiac]

merged 2 gain stickies

[philip]

i was just playing with my amp (t20001bd) and please correct me if i'm wrong. i turned the freq. on the amp down and all the other eq settings for the sub is flat. do i get the target voltage from there? when i turn up the freq. on the amp. the a/c voltage also goes up. oh btw. i don't have my sub hooked up and i was playing a 43 hertz tone and also tried it on 46. i was just wondering if i set it at the amp freq at zero then turn it back to about 80 when i'm done or set the gain with the voltage at 80?

[95pimpalass]

Or you can also set it "by ear"

I recommend doing it using a DMM but I have done many systems by ear in the passed and none have failed.

When setting the gains ''by ear'' you still need to use a ''50 hz tone'' to set it.....? and how would I set it.....?

[Torres]

by ear, you turn the volume up to about 75%. adjust the gain till you hear it start to get distorted. it's easy to tell when this happens. it just sounds kinda flat. then turn it back down a bit till it's a clean signal again.

[codi]

how do you set the amp out put? is it just a dial on the amp that you turn (or set)?

[ChevyBoy]

how do you set the amp out put? is it just a dial on the amp that you turn (or set)?

http://www.stevemeadedesigns.com/board/ind...hl=setting+gain

question for me though:

say a box is a little smaller (ported) than what the subs call for, how would you go about setting gains on that? just leave the voltage a little lower?