Tuning Amp by multi meter

[Memphis2011 10+ year member]

Hey guys was I was trying to tune my amp by multimeter I have 2 Rockford Fosgate P3D2-12 and t1000-bdcp amp also fosgate the subs are wired at 2 ohms and wanting to run the amp at 1200 watts for the 2 subs the PVC paper says the amp will push 1400 rms when it was tested the HU I have is a kenwood DDX-318 with 22 rms whating to see what voltage yall come up with here is my

V sprt 1200*2 =2400 the sqrt of 2400 is 49.39 is that right?

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[LosIsATool 5,000+ posts]

Set the gain to the rated power not the birth sheet. Those birth sheets are tested under optimal conditions at a unknown freq. You will not see those numbers daily. Unless you can scope it then clamp it yourself dont trust them

 

[Memphis2011 10+ year member]

Ok so if I take it to 1000 what would it be just want to make sure I calulate right 1000*2 2000 sqrt = 44.72

 

---------- Post added at 09:54 AM ---------- Previous post was at 09:54 AM ----------

 

I also have a tC

 

[Memphis2011 10+ year member]

Ok so was my numbers the right way to do it?

 

[LosIsATool 5,000+ posts]

Ok so was my numbers the right way to do it?

Hang on man... Yes 44.721359549995796

 

[Memphis2011 10+ year member]

thanks i was going to ask you have you done the LED mod on on the speed cluster on the scion

 

[LosIsATool 5,000+ posts]

thanks i was going to ask you have you done the LED mod on on the speed cluster on the scion

No I thought about it a while back but I dont really care

 

[Memphis2011 10+ year member]

only thing I worry about is putting the needles back and removing them I work at the place where there made but I make the alt for them but it is pretty easy just the needle is the tricky part