The Sansui SM-17 shown is a vintage tube HIFI stereo amplifier with two channels and multiple inputs, including phono, microphone, tape, and auxiliary. It provides speaker connections for 3.2 ohms, 8 ohms, and 16 ohms loads, making it compatible with a wide range of vintage speakers. It also features AM radio, two-channel tuning, bass/treble controls, balance, loudness, and stereo/mono operation, making it a versatile all-in-one vintage hi-fi amplifier.
