Originally I purchased this amp to power the four polk 5x7's in my wife's Mazda 5. There's really no were to place an amp so I ended up putting it in a storage compartment under one of the center row seats. I was pretty worried about it overheating in such a small space (only enough room for the amp) but every time I checked it was never warmer than ambient. It performed very well providing great sound at all volume levels. I never experienced any issues.

We ended up selling the 5 and bought a Town & Country. Turns out there is even less space to place an amp in a larger vehicle so the amp is nestled under the drivers seat. This time it's powering four Infiinity 6x9's. We'd been running these speakers off the head unit for about 3 months and weren't very impressed. They sounded better than stock but didn't have the rich full sound we wanted. After installing this amp I'm reconsidering putting subs in the van. The highs are amazing and there's is more than enough bass to rattle everything in the van. This was probably the best money I have spent for my stereo.