Servo 120 is a two-channel servo-controlled stereo power amplifier designed for near-field monitors or a headphone amplifier. It delivers 60 W per channel into 4 ohms in stereo mode and 120 W into 8 ohms in bridged mono mode. It features front-panel headphone jack with a speaker-disable switch, independent left/right level controls with 5-segment, 3-color LED meters, balanced 6.3 mm TRS inputs and unbalanced RCA inputs on gold-plated connectors, push-spring outputs, relay-controlled power-on circuitry, and convection cooling with no fan noise. Overheating and over-current protection are included.