this amp works very well for the price as long as you know that - it CAN be bridged on 1/2 ch and/or 3/4 ch - But = It only has low pass filter and bass boost on ch 1/2. It does NOT have either option on ch 3/4 - so what that means is sub on ch 3/4 bridged = full range or high pass only , not as low bass. Also if you have both bridged it overheats in about 1 hr continuous use at full power but you'll prob be deaf lol! It has only overheated once other than that no problems! i have it pushing pyle blue wave 10s = two 500 watt tens in a bandpass box . they match the rms of the amp bridged about 250 watt each @ 4 Ohm. sounds very good. im going to one 1000watt sub because it sounds just as good and i can get rid of my old amp and use this one for all my speakers. awesome sound for the price!