Power Reference amplifiers are the durable, reliable and powerful workhorse of the Memphis line. These amplifiers provide impressive power and performance. The single sided terminal design allows for convenient and easy wire routing to your amplifier for a clean installation. The top mounted control panel can easily be accessed for adjustments to dial in the perfect performance from your Power Reference amplifier. Power Reference 5-Channel amplifiers are designed to deliver impressive power to your entire audio system. If you need an amplifier that feed impressive power to your sub and speakers, the PRX800.5V is an ideal solution. Features - Extruded aluminum heatsink Signal sensing auto turn on Top mounted controls 12dB/octave butterworth crossovers LED light strip 1Ω Stable (MONO) Remote bass knob (MONO & PRX800.5V) Hi/Low selectable inputs Specifications - RMS Power 4Ω: 70 x 4 + 200 x 1 RMS Power 2Ω: 100 x 4 + 400 x 1 Bridged Mono @4Ω: 200 x 2 + 400 x 1 @ 2Ω THD % 4Ω: