a responce 2x150W rms will do you the trick, drop it down to 2 ohms which would leave you with a fair amount of power per speaker....
dont get confused by the 2x150W rms, when bridged its actually around 500W rms, then if dropped to 2 ohms should leave you with 700-800W rms so thats atleast 350-400W rms per channel, that leaves you with plenty of head room to play with
people say medium quallity, but in reality,
its a POWERAMP... with a BASIC EQ in it......
with the right EQ setup it can sound as SH*t or as good as u want it to...
its also about tuning your system, most people dont have a clue about it and claim a product is crap because they dont understand how to make it sound good, ive "better" quallity amps before and they'res not that much of a diffrence