alright i plan on running 2 18" subs. i have them in my car (91 civic hatch) so its a tight space. they are already in the car there right behind the seats 2 boxes side by side. and the subs are facing me. do i need to switch the amp phase to 180* since they are right behind my head lol or keep it at 0?

its pretty much a wall setup. the subs are just angled back a little bit.

im not 100 percent sure about the phase setting yet.

Edited September 26, 201113 yr by 5000wrms

Play a song with phase set at 0. Then play the same song over again with phase set to 180, If you hear no loudness difference to the ears then you dont need to have phase on 180 for your application. Easy as that.

i would leave it at 0 and see how it sounds then switch it to 180 and see what you prefer!

do you know what is going on in the amp when you switch the phase?

http://www.answers.com/topic/phase-angle