Alpine MRV-F450 Car Amp

This is a great amp for anyone who wants excellent sound and quality and has limited space. It does have a smaller footprint than other comparable amps. Like the other reviewer, I got a great deal $260 on ebay. I'm using all 5 channels (4x50 1x200 sub @ 4 ohm) to drive two pairs of Polk Momo 650's and a 8" Polk Momo sub. The sound is unbelevable. Adjusting the gain on all the channels per Alpines recommendations puts a lot of power to all the speakers. If you use 2 ohm speakers or dual voice coils you get double the power output. That's almost 800 watts. I installed this in my Jeep which has NO space and I'm entirely pleased with the crisp clean sound and power.