I am running an Alpine 164BT head unit, DLS UPi 6.5 components, Infinity Kapa 4x6's, Precision power Ice1000.4, 2 Sound Quebed 10's powered with a MB Quart Onyx OA2050.1D. I have recently bought 2 Rokford Power dual 4-ohm T1D410 subs. I was kinda forced into buying MB Quart amp. I have read some reviews on the MB Quart amp and most weren't very good. I was wanting to get some suggestions for a good amp. I would like to try and stay under $500.00 if I can. I listen to mostly rock and everything is installed in a standard cab truck.