SUBWOOFER...pls help

[gen3v6]

I have 2 12" MTX (900w each) and run it with Rockford Fosgate 800.2 and MTX corssova In a 94 camry and my problem is my bass doesn't sound as crispy as i think it should b. It have an echo and distord everytime i put it loud. I tried tune it but didnt' work.
My friend who have the same thing as I do excet with a 500.2 RF and it sound way betta than mine. And from what he told me he use to have the same problem in a camry but when he switch his system on 3.2tl its sound way betta also . SO any suggestion would b helpfull... thnks

[gzus13]

Sounds like your electrical system can't handle the current draw. The easiest way to fix this is to get a capacitor - you'll need 1 farad for every thousand watts you run. You may also want to try turning down the gain, gain equals output, but also equals distortion.