4-channel Power Amplifier, 500W/ch at 2/4 ohm, 250W/ch at 8 ohm, 1000Wx2ch at 70V or 100V Direct Lo-Z and Hi-Z, Full matrix DSP, Full rack/2U, Built-in WiFi for easy set-up, GPIO, 4 assignable analog inputs, coax digital input/output, and Ethernet Port