The REF500S provides high power in a compact stereo chassis. It delivers 121dB dynamic range and 200 watts into 8 ohms, doubling to 400 watts into 4 ohms. The combination of fully-regulated switch-mode power supplies and analog control circuitry brings great dynamic expression to your music.

The REF500M drives your loudspeakers with an unprecedented level of sonic accuracy and power. The REF500M delivers 121dB dynamic range and 250 watts into 8 ohms, doubling to 500 watts into 4 ohms. The combination of fullyregulated switch-mode power supplies and analog control circuitry brings incredible dynamic expression to your music.