I had a bad experience with that MB QUART amp. Right when I hooked it up it overheated within 5 mins and was always BURNING HOT to the touch. Returned it and got a some 4 channel JBL amp (forgot name). Also the control settings on the MB Quart amp feel really cheap and it is annoying having to unscrew the plastic cover off it if you want to change something. The actual knobs are also hard to move unless you have something like a flathead with you. Be careful not to rip pieces of the knob off either since they are somewhat of a mushy plastic.