Bought with an FLI 450.2 amp to make a cheap system for my suv that was small enough to remove frequently when i need to haul stuff. Makes good sounding bass at low volume levels, starts to sound stressed pretty easy when you turn it up though. Tested the same amp with a coustic 10" and defiently sounded better louder but i think a few of these 8's in the right box would be impressive. Also i built my sealed box to the specs in the manual but i think its a little too big.