For years, Brutus amplifiers have been recognized the world over as some of the best subwoofer amplifiers in their class. Hifonics newly designed Hifonics Brutus amplifiers are the most efficient and comprehensive Super D-Class series ever. "With the new vertical fin heat-sink design these amplifiers have better heat dissispation and therefore run more efficient resulting in less impact on a car's battery and charging system than many other amps available today." Translated into cost, that's more wattage output with less battery current used, equaling more watts per dollar. As always, Brutus amps are 1-Ohm stable, but also run at 4- or 2-Ohms for a much tighter bass response, and it is no different for this new line up. For 2011 there are five models with power starting at 1200 Watts all the way up to 3000 Watts. In relying on this super-speed enhanced chip-set, it offers higher current capacities and more precise digital to analog conversion. The result is very low distortion, even at high listening levels. The amplifier is also battery stable up to 18 volts!