Setting the Gain on the Amp

[Chief612]

Im having hard troubles setting my Gain on my Amp. I have a 3000 watt amp and having my subs on a 2ohm load and i know thats all the information you need to set the gain using the formula with sqrt which i forgot :/ but i was trying to set up my gain, i watched a few youtube videos and i first turned down all the gain, subsonic, etc besides the lowpass which i put up all the way, so i unplugged my speaker wires and turned my radio all the way up and put the volt meter across the speakers, i have no reading on the voltemeter and i have the voltmeter to read ac, and i have song playing, so what am i doing wrong?

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[LosIsATool 5,000+ posts]

1st thing. What amp is it?

 

[Chief612]

it was that planet audio 3000 watt amp that you didn't like //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[naughtyca 10+ year member]

1st thing. What amp is it?

not sure why this matters?

 

[Chief612]

not sure why this matters?

correct all you need is the info i gave right?

 

[LosIsATool 5,000+ posts]

not sure why this matters?

I'll give you a little education. Setting the gain using a DMM you set it to the RMS of the amp. If its a overrated amp and you set itto what it says you will clip it to death. The DMM method is not good for those amps cause you have no idea what to calculate

 

[Chief612]

I'll give you a little education. Setting the gain using a DMM you set it to the RMS of the amp. If its a overrated amp and you set itto what it says you will clip it to death. The DMM method is not good for those amps cause you have no idea what to calculate

well its that planet audio 3000 watt amp

 

[LosIsATool 5,000+ posts]

well its that planet audio 3000 watt amp

OK. Which one? What do you think it really does?

 

[Chief612]

OK. Which one? What do you think it really does?

well you already gave your thoughts on it in my other thread but it isn't goin to do the whole 3000, so how do i set the gain on it?

 

[LosIsATool 5,000+ posts]

well you already gave your thoughts on it in my other thread but it isn't goin to do the whole 3000, so how do i set the gain on it?

The only "safe" way would be going off the fuse rating, which I now remember was 50a. That would be 500 watts.

 

[Chief612]

The only "safe" way would be going off the fuse rating, which I now remember was 50a. That would be 500 watts.

ok then, so with that said lets take the formula: sqrt(500x2) correct?

 

[naughtyca 10+ year member]

I'll give you a little education. Setting the gain using a DMM you set it to the RMS of the amp. If its a overrated amp and you set itto what it says you will clip it to death. The DMM method is not good for those amps cause you have no idea what to calculate

Big fail

 

[LosIsATool 5,000+ posts]

ok then, so with that said lets take the formula: sqrt(500x2) correct?

If its a 2ohm amp yes

 

[LosIsATool 5,000+ posts]

Big fail

Oh really. Why is that?

 

[Chief612]

If its a 2ohm amp yes

ok so here is my original help: i first turned down all the gain, subsonic, etc besides the lowpass which i put up all the way, so i unplugged my speaker wires and turned my radio all the way up and put the volt meter across the speakers, i have no reading on the voltemeter and i have the voltmeter to read ac, and i have song playing, so what am i doing wrong?