The Buckeye Amps NCx500 Stereo is a powerful Class D stereo amplifier based on the Hypex module. Up to 700 watts per channel (at 2 and 4 ohms), THD 0.0006%, signal-to-noise ratio 128 dB. Flat frequency response (0-75 kHz). Selection of the gain stage (Buckeye/Hypex). Aluminum housing, Neutrik XLR connectors, gold-plated terminals.