Back around September, I decided it was time for my first sub, I had the sub, box and even wire kits picked out, but was not sure on an amp. Seeing as I had very little budget left, I took a jump with the MBQuart FX1.600. Let me tell you, this is a great amp. I mounted the amp behind the sub box, and I have it powering a 600 watt JVC Arsenal 10 inch in a ported box. At first I was disappointed. The thing had twice the power of other 10" subs I have heard, and still didn't seem to hit as hard. Then I decided to tweak the amp a little. After putting all settings a quarter turn down from max, and then playing with the subsonic filter, I have this thing hitting. This amp puts out enough power to rattle my entire car. Kudos MBQuart, for making a cheap, reliable and still quality amp.