9/10 condition with no flaws or blemishes.  All inputs/outputs tested and the unit is sonically flawless.  

The MOON 400M was a differential mono power amplifier that produced 400 watts into 8 ohms and 650 Watts into 4 ohms. Based on our highly acclaimed Advanced Renaissance amplifier circuitry, the class A/AB, zero global feedback, DC-coupled 400M was capable of producing tight, deep and powerful bass with lightning fast speed; True high-performance in a compact package without compromise. Possessing a high damping factor, an incredibly low noise floor, excellent dynamic range and a transparent lifelike soundstage, the MOON 400M could effortlessly drive any loudspeaker. Even difficult loads didn't impede its ability to remain exceedingly musical and accurate.

Our own unique heat-sink geometry allowed for ultra-effective and efficient cooling. The amplifier's oversized power supply contained a large proprietary toroidal transformer and substantial energy storage. Finally, with both balanced (XLR) and single-ended (RCA) inputs, the MOON 400M represented the ultimate choice for performance and affordability.