The Eclipse EA4200 amp is very small in size or should I say footprint, But don't let the size fool you this amp is powerful being rated at 60watts rms per channel. This amp is flexible for a 4 channel amp you can wire it in 4/3/2 channel mode. Being that this amp is a class D which mono subwoofer amps are this amp does not heat up much at all its warm to the touch and I have the gain at about 85% up. I brought this amp to be compatible with my kicker Ks Components(Kicker KS602 front, Kicker KS502 rear)and they sound loud and clear. The only downside i see is the filter on the amp you can only set it to High Pass (HP) or Low Pass (LP)I read some other review where it has a settings for all pass (ap), but anyway I don't need it because I have a subwoofer in my back for the bass. I would highly recommend this amp and buying it from ebay which seems to have the cheaper price for this amp compared to other websites.