A very rare, vintage piece, in excellent condition, considering its age. General Manufacturer: Technics (Technics By Panasonic) Model: SA-6000X Type: Quadraphonic Receiver Years of manufacture: 1973 - 1976 Made in: Japan Color: brushed aluminum front, wooden cabinet Remote control: Power consumption: Dimensions: 430 x 146 x 385 mm (WxHxD). Weight: 11.1 kg Original price approx.: 1'695 DM Connections Number of inputs: phono: 2 mV, 50 kOhm, max. 330 mV Microphone: 1,5 mV (6,3mm jack) Aux 2-channel: 150 mV, 50 kOhm Aux 4-channel: 150 mV, 50 kOhm Tape Play 1, 2, 2-channel: 150 mV, 50 kOhm Tape Play DIN, 2-channel: 150 mV, 50 kOhm Tape Play 1, 2, 4-channel: 150 mV, 50 kOhm Tape Play DIN, 4-channel: 150 mV, 50 kOhm Discrete 4-channel: 150 mV, 50 kOhm Main In: Antenna (FM: 75, 300 Ohm, AM). Number of Outputs: Tape Rec 1, 2: 150 mV Tape Rec DIN: 30 mV Dolby NR Adapter: Pre Out: 1 V Headphones (6,3mm jack): 1x front, 1x rear 2 speaker pairs front 2 pairs of rear speakers Technical Data Amplifier Continuous power 4-channel (at distortion): 8 Ohm: 4x 10 W (RMS, 20 Hz - 20 kHz, 0.5 %). 4 Ohm: Continuous power 2-channel (at distortion): 8 Ohm: 2x 30 W 4 Ohm: Dynamic power: 8 Ohm: 4 Ohm: Total harmonic distortion: < 0.5 % Attenuation factor: 30 at 8 Ohm Frequency response: 8- 50'000 Hz, - 3 dB Power bandwidth: 13 - 20'000 Hz, - 3 dB Signal-to-noise ratio: Phono: 70 dB High level: 90 dB Tone control: Bass: ± 10 dB at 50 Hz Treble: ± 10 dB at 10 kHz Loudness: + 9.5 dB at 50 Hz, + 4 dB at 10 kHz Treble filter: Subsonic: Mute: yes, - 20 db Tuner Reception: FM, MW Frequencies: FM: 88 - 108 MHz MW: 530 - 1,605 kHz Input sensitivity: FM: 1.8µV MW: 8µV Frequency response: 30 - 15,000 Hz (+0.3 dB, -1 dB) Distortion factor: FM, 1 kHz: < 0.4% (mono), < 0.7% (stereo). Signal-to-noise ratio: FM: 57 dB (mono), 52 dB (stereo) MW: 55 dB Channel separation: 35 dB (1kHz) selectivity: 70 dB Co-wave selection: 1.5 dB Spurious wave selection: FM: 80 dB MW: 35 dB Image frequency attenuation: FM: 85 dB MW: 40 dB IF attenuation: FM: 85 dB MW: 35 dB AM suppression: 55 dB Special Features Switch 4-channel matrix 1, 2 , discrete / stereo / mono Microphone input front