How to tune an amp when in Series?

[mikeg321]

you measure voltage of just one channel. unless im very mistaken you want to do option C. that will set each channel to 125w.

x2

[JZeFF]

Lol... so far i have gotten each answer except for B...

So i set it by ear, lol. Turned the HU to 26/32.... turned off al adjustments.. and annoyed all my neighbors with a 1khz test tone for 10 minutes..

I would still like to know the correct answer though, haha.

[skittlesRgood]

im going to try to break this down so you understand the way i understand it. i REALLY dont believe im wrong but there is always that chance.

A, B, or C, which method is correct?

A. 500 x 4 = 2000 Square root of 2000 = 44.72 (500 being the total power of the amp, 125w at 4ohms times 4) - 500w is the total power of the amp. to get the total power you would need to measure all 4 channels at the same time.

or

B. 250 x 4 = 1000 Square root of 1000 = 31.62 (250 being the 2 rear channels of the amp, 125w at 4ohm x 2) - channel 1 and 2 are on one gain and 3 and 4 are on another gain so 250w will ultimately be controlled by one gain but its split into 2 channels (cut in half) so unless you bridge channels 1/2 and 3/4 you wont see 250 out of one channel.

or

C. 125 x 4 = 500 Square root of 500 = 22.36 (125 obviously being 1 channel of the amp at 4 ohms) - the goal is to measure the voltage of each channel. each channel puts out 125w so this would be the correct answer.

BUT, i just set the gains on my 4 channel by ear.