The Sansui AU-5500 is an integrated amplifier that was manufactured between 1975 and 1976 in Japan. It features a black exterior and is notable for its robust build and classic design. The amplifier has a compact footprint, measuring 434 x 130 x 315 mm and weighing 10.4 kg. It is equipped with multiple input options, including two phono inputs with adjustable impedance settings, a tuner input, two auxiliary inputs, and a tape play input. The device also supports both pre and main outputs, headphone output, and can drive two pairs of speakers. The continuous output power is rated at 35 W per channel into 8 Ohms, with dynamic power reaching up to 65 W into 4 Ohms. The total harmonic distortion is rated at a low 0.2%, contributing to its audio fidelity. Frequency response ranges from 10 Hz to 40 kHz, with a signal-to-noise ratio exceeding 70 dB for phono inputs and 85 dB for high-level inputs. The amplifier features tone control options for bass, midrange, and treble along with loudness, high and low filters, and a mute function. A key aspect of the AU-5500 is the separability of its pre- and power stages, allowing for greater versatility in audio setups. Its original price was approximately 1,390 DM.
