I have two audiobahn subs and two audiobahn AW8002T amps and i want to run one amp on one sub but i dont know how to match the gains so both subs are getting the same wattage anyone else know how?

Tuning your amps

The simplest and easiest way to get your amps tuned is to follow these simple instructions. Grab your digital multimeter and a calculator.

output = square root (watts * ohms)

First, take your amp's wattage at load. For example, let's say your amp does 300 watts rms at 4 ohm. That would be 1200. Take the square root of that and you'll get 34.64101615137755, so let's say 34.64. Take your multimeter and set it to AC volts. Disconnect your speakers from the amplifier. Grab this file here - http://www.realmofexcursion.com/audio/testtones/20Hz_to_120Hz.mp3 - and burn it to a cd. Turn your eq's off, turn your volume to 3/4 of the way up, hook up your multimeter to the + and - of the speaker outputs and play the sine wave. Your peak voltage should hit at the beginning of the cd - adjust your gain till it reads the voltage you figured out earlier, then leave it. Hook your speakers back up, and your gain is set. Don't turn your volume up above this volume or else you'll clip.

It should be identical for both amps.

how do i get that sound clip from there to my computer?

Right click > Save Target As