Audiobahn A4125HCQ- huge 1 ohm stable 4 channel with 2 built in volt meters with blue backlights and flame design across top. 125rms x 4 at 4, 250 x 4 at 2, 500 x 4 at 1, 250 x 2 at 4, 500 x 2 at 2 and 1000rms x 2 at 1ohm.
I have a MMATS PRO SQ4160 ...one of the baddest real watt amps and also sound quality . pm if you want to make an offer. its not currently on the market but its also not in the car.