New Install--4 channel gains

[tooshort_128 10+ year member]

I just installed my new setup yesterday and have a question about setting the gains on my Memphis 4 channel. I've bridged the amp to give my PG comps 150rms x 2 at 4 ohms. I set my gains correctly with a DMM and was wondering if my voltage should be 17.32--Sqrt(150*2) or 24.494--Sqrt(150*4)??

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[tooshort_128 10+ year member]

Anybody??

 

[tooshort_128 10+ year member]

And I say 150rms x 2ohms because according to JL's website, if you bridge a 4 channel you're supposed to halve the impedence.........

 

[DejaWiz 5,000+ posts]

You have to use the speakers impedance to calculate voltage with that formula.

SQRT(150*4) = 24.49V

 

[tooshort_128 10+ year member]

Yeah, I figured that out when I got home yesterday. I got confused when looking at JL's site and they said to halve the impedence, etc. I got it set to 24.48 and they sound even more amazing. Thanks Deja!

 

[DejaWiz 5,000+ posts]

No problem bud. Glad the results are favorable!