MTX Audio offers the Coustic 650-watt RMS Mono Block Car Amplifier
, model no 3000C1, for $99.99
with free shipping
. That's the lowest total price we could find by $149. Designed for mobile subwoofer applications, this amp features include 650 watts RMS power into one-channel at 1 Ohm (200 watts into one-channel at 4 Ohms), variable low-pass crossover, finned aluminum heatsink, and more.