Pyramid PB448 x 1000 W 4 Channel MOSFET Amplifier w/Sub Crossover Newly 2005 Model. One Year Warranty Retails: $122.61 Listing $128.35 Condition: New Model PB448 x Pyramid PB448 x 1000W 4-Channel MOSFET Amplifier w/Sub Crossover Details Four Tri-Way Bridgeable Channel Amplification Configuration: 4/3/2 Channels, 4 x 250W Total Output 1000W Total Output System Variable Gain Control/Remote Turn on/off Moseft Pulse Modulation Stable Power Supply 2 Ohm Stereo Variable Built-in Subwoofer Speaker Output (Rear) Gold Plated RCA Low Level Inputs Hi-Level Molex Low Input Impedance Barrier Strip S/N Ratio: More than 90dB THD Less 0.04% Frequency Response: 15-30K Hz Thermal/Overload/Power On Indicator LED,