This Audio-GD S-1 amplifier benefits from Class AB architecture, enabling it to deliver a sound reproduction of fine musicality. Efficient, it is also capable of delivering 2x70W RMS power at 8Ω. Its careful design isolates the large toroidal transformer from other circuits to limit interference. In addition, large filter capacitors provide a clean electrical signal to the audio sections.

The front panel features two rotary knobs. The first selects the active input, while the second controls volume. On the connector side, four stereo RCAs are available for input, and speaker terminals accepting banana plugs are available for output.