Zapco REF 500.1 550x1 Class AB Amplifier

REF 500.1 Features and Functions - 1-Channel, Class-AB, High-End Amplifier - Signal to noise ratio of over 103dB - High Quality Bipolar-input Dual OP - High Quality/Transition Frequency Transistors - High-precision 0.1% Output Resistors - High density, Loss factor Input Capacitors - Low internal resistance Power Capacitors - Ultra Low On-Resistance, Fast Switching Mosfets - High-power pure copper transformers - Low Resistance Fuses Technical Specifications - Power RMS @ 4Ω: 1 x 320 watts - Power RMS @ 2Ω: 1 x 550 watts - THD @ Rated Power < 0.02% - Signal to Noise Ratio > 102dB - Frequency Response: 10Hz to 40,000Hz ±1dB - Input Sensitivity: 0.5V to 8V - Fuse Rating: 2 x 40A - Overall Dimensions (mm): 210(W) x 62(H) x 416(L) User Manual