This is a stereo tube amplifier made by telefunken, model S81 found in a salzburg console unit. Tube compliment is 2x ecl82 tubes and power output is around 2 WPC at 8 ohms or 4 ohm single ended. This amp was meant to run an auxillary pair of speakers and was an add-on to the original radio console. It's all original, but main filter caps are replaced. Contacts cleaned and set to 240V Original Telefunken tubes, they sound still perfect. Nice detailed, deep and wide tube sound. Use high efficiency load-speakers with sort listening distance for best result! Speaker output is standard banana size. Input is 3-way din to RCA. These are all included in the auction! Condition is excellent. Carefully shipped