Vintage receivers

Harman Kardon HK 430

Harman Kardon 430

Twin Powered Receiver (1976)
Specifications:
Tuning range: FM, MW
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.3%
Damping factor: 40
Signal to noise ratio: 65dB (line)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 432 x 368 x 140mm
Weight: 10.9kg

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Pioneer SX-990

Solid State AM/FM Stereo Receiver (1970-71)
Specifications
Tuning range: FM, MW
Power output: 28 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.5%
Input sensitivity: 5mV (mic), 3.3mV (MM), 24mV (ceramic), 200mV (line)
Signal to noise ratio: 80dB (MM), 100dB (line)
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 1 x FET, 36 x transistors, 5 x IC, 17 x diodes
Dimensions: 459 x 145 x 369mm
Weight: 11.4kg
…more 

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