Hifonics Zeus series amplifiers. Designed to complement the Brutus D-Class line, this series has a newly designed, ultra-cool vertical fin heat-dissipating design. The outstanding line of Zeus amplifiers includes one 2-channel, three 4-channel, and one 5 channel amplifier. The key feature for these amplifiers is the vertical fin heat-sink. With the new vertical fin heat-sink design these amplifiers have better heat dissipation and therefore run more efficient resulting in less impact on a cars battery and charging system than many other amps available today. Translated into cost, thatÍs more wattage output with less battery current used, equaling more watts per dollar. This series also includes the ZXi60.4 +1K model. This 5 channel amplifier provides 2 channel, 4 channel, and Super D mono-block performance. For someone looking for ease of installation and space-savings, this is this amplifier of choice. This one amplifier is capable of powering an entire system including four speakers and a subwoofer! Rather than bridging two amplifiers, which takes up additional space, this one does it all. Zeus amplifiers utilize the latest in Hifonics exclusive technology with Ultra-Fi MOSFET output devices, responsible for decreasing distortion and producing high fidelity. With Ultra-Fi, Zeus differential inputs combat electrical interference and noise at the pre-amp sections RCA inputs. As a result, this high-speed Ultra-Fi circuitry delivers the cleanest and widest bandwidth possible in a mobile amplifier system.