PIONEER SX 550

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SPECIFICATIONS:

Tuning range: FM, MW

Power output: 20 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 60kHz

Total harmonic distortion: 0.3%

Damping factor: 25

Input sensitivity: 7.5mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)

Signal to noise ratio: 70dB (MM), 90dB (line)

Output: 150mV (line), 30mV (DIN)

Speaker load impedance: 4Ω (minimum)

Semiconductors: 3 x FET, 5 x IC, 28 x transistors, 21 x diodes

Dimensions: 448 x 141 x 307mm

Weight: 9.4kg

Accessories: FM T-type antenna

Year: 1976