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AmplifiersStereo ReceiversDiscontinued
Estimated price (community-sourced)
$650
Around — community and catalog average, updates slowly
About the SX-780
The Pioneer SX-780 is a vintage AM/FM stereo receiver produced from 1978 to around 1980. It combines a stereo amplifier rated at 45 watts per channel with an AM/FM tuner, phono equalizer for moving-magnet cartridges, tone controls, loudness control, and independent power meters. Connections include phono, auxiliary, two tape loops, headphone output, and A/B speaker outputs.
Specifications
Type: AM/FM stereo receiver; Continuous power output: 45 W/channel into 8 ohms (20 Hz–20 kHz, 0.05% THD); 45 W/channel into 4 ohms (20 Hz–20 kHz, 0.08% THD); Frequency response (line): 5 Hz–80 kHz (+0, −1 dB); Damping factor: 30 (20 Hz–20 kHz, 8 ohms); Inputs: Phono (MM), Aux, Tape 1, Tape 2; Outputs: Tape 1 Rec, Tape 2 Rec, headphones; Speaker outputs: A and B; Tuner: AM/FM; Dimensions: approximately 480 × 140 × 320 mm (W × H × D); Weight: approximately 11.2 kg.