Samson Servo 120A Power Amplifier

The Servo 120a is a single-rackspace stereo power amplifier built for compact PA and installation setups. In stereo mode it delivers 60 W per channel into 4 ohms, or 50 W per channel into 8 ohms; bridged to mono it produces up to 120 W into 8 ohms for a single higher-power load.

The amplifier uses a toroidal transformer and bi-polar output design, with 1/4" balanced and RCA unbalanced inputs for flexible source connection. Front-panel volume controls and LED metering are provided for each channel, along with a headphone output and speaker mute switch.

Convection cooling keeps the unit fan-free, making it well suited to quiet environments such as churches, conference rooms and small venues where amplifier noise would be intrusive.