The SA-500 features superior frequency response. By the use of all silicon transistors, a flat frequency response with low distortion factor is obtained from bass to treble. The unit is compact and versatile. In addition to the terminals for connection of a record player, tuner and tape recorder, two sets of terminals are provided for connection of auxiliary inputs to permit reproduction of all kinds of program sources. The amplifier is a product of Pioneer's new model series, designed for both luxurious appearance and operational convenience. Specifications Power output: 13 watts per channel into 8Ω (stereo) Frequency response: 20Hz to 50kHz Total harmonic distortion: 0.5% Damping factor: 40 Input sensitivity: 2.4mV (MM), 193mV (line) Signal to noise ratio: 75dB (MM), 90dB (line) Speaker load impedance: 4Ω to 16Ω Dimensions: 330 x 118 x 313mm Weight: 6kg