Am i calculating my volts right? Please take a glance. Trying to set my gain

[scheibler 10+ year member]

Ive got an alpine mrp m350 amp that does 350 watts @ 2 ohm and a 4 ohm dvc ssa dcon 10". Im trying to run the sub at around 300-350 watts in parallel at 2 ohms. I want to accurately set my gain and found the equation that you are suppossed to use to find the optimal volts.

Voltage = sqrt(rms x impedence)

So is this what i would do for my 4 ohm dvc woofer?

Voltage = sqrt(300x4ohm)

Voltage = sqrt(1,200)

Voltage = 35

Or is it this since im running the amp at 2 ohm to a 4 ohm dvc woofer

Voltage = sqrt(300x2 ohm)

Voltage = sqrt(600)

Voltage = 24.5

Click to read more...

 

[bubbagumper6 5,000+ posts]

The second calculation is correct. You want to use whatever impedance the amp will be seeing (i.e. whatever your final load is) which in this case is 2 ohms.

 

[scheibler 10+ year member]

Alright thanks. I appreciate your help

 

[bubbagumper6 5,000+ posts]

No problem.