Help a Noob with Gain Setting

[doublevision 10+ year member]

imma try to set my gain for my 2 amps. i have read through the gain tutorial thread and still have some questions i need answered before i attempt to set my gains.

1) i have an amp thats does 2x 200 rms @ 4 ohms mono BRIDGED. I want to give my speakers 150 rms each. so would the formula be

sqrt(150*4) = 24.49v ????????

when i bridge the amp, i dont have to do anything special with the formula rite?

2) I have a D4 sub being powered by an amp at 500 @ 2 ohms. which resistance do i plug in the formula? the 4 ohms of the sub or the 2 ohm load of the amp?

sqrt(500*4)=44.72v OR sqrt(500*2)=31.62v

3)would i still send a clipped signal from my amp to my sub if i underpowered my sub? or is a clipped signal only possible if you overpower your sub from its rated rms?

Click to read more...

 

[Pioneer~Saturn 5,000+ posts]

If you want real-world answers for yourself the absolute best way to see how much your amp is truly putting out would be to measure the voltage and current coming out of your amps positive speaker terminal...then just do the simple math to get power

As for the clipping, youre going to need to set your amps gain using an oscilliscope...making sure to set your gain where the signal is just on the verge of flattening (clipping)...

for further info on setting with an o-scope you can go to the amplifier section on termpro's forum..