Technics SA-8100X

Data

General

• Manufacturer: Technics
• Model: SA-8100X

Type: Quadraphonic Receiver

• Years of manufacture: 1973 - 1976
• Made in: Japan
• Color: brushed aluminum front, wooden cabinet
• Remote control: no
• Power consumption: 500 W max.
• Dimensions: 502 x 155 x 395 mm (WxHxD)
• Weight: 14.8 kg
• Original price approx.: 2'198 DM

Connections

• Number of inputs:
  • Phono 1, 2: 2 mV, 50 kOhm, max. 330 mV
  • Aux 2-channel: 180 mV, 30 kOhm
  • Aux 4-channel: 180 mV, 30 kOhm
  • Tape Play 1, 2, 2-channel: 180 mV, 30 kOhm
  • Tape Play DIN, 2-channel: 180 mV, 30 kOhm
  • Tape Play 1, 2, 4-channel: 180 mV, 30 kOhm
  • Tape Play DIN, 4-channel: 180 mV, 30 kOhm
  • Discrete 4-channel: 180 mV, 30 kOhm
  • Main In:
  • Antenna (FM: 75, 300 Ohm, AM)
  • Microphone (6.3mm jack).
• Number of outputs:
  • Tape Rec 1, 2: 180 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 16 W (RMS, 20 Hz - 20 kHz, 0.5 %), 4x 30 W (1 kHz).
  • 4 Ohm: 4x 17 W (RMS, 20 Hz - 20 kHz, 0.5 %), 4x 24 W (1 kHz)
• Continuous power 2-channel (with distortion factor):
  • 8 Ohm: 2x 46 W (RMS, 20 Hz - 20 kHz, 0.5 %), 2x 50 W (1 kHz).
  • 4 Ohm:
• Dynamic power:
  • 8 Ohm: 120 W
  • 4 Ohm: 160 W
• Total harmonic distortion: < 0.5 %
• Attenuation factor: 25 at 8 Ohm
• Frequency response: 7 Hz - 70 kHz, -3 dB
• Power bandwidth: 5 Hz - 40 kHz, -3 dB (4 ohms)
• Signal-to-noise ratio:
  • Phono: 70 dB
  • High level: 90 dB
• Tone control:
  • Bass: ± 11 dB at 50 Hz

Treble: ± 10 dB at 10 kHz

• Loudness: + 11 dB at 50 Hz, + 3 dB at 10 kHz
• Treble filter: - 10 dB at 7 kHz, 6 dB / octave
• Subsonic:
• Mute:

Tuner

• Reception: FM, MW
• Frequencies:
  • FM: 88 - 108 MHz
  • MW: 530 - 1,605 kHz
• Input sensitivity:
  • FM: 1.9µV
  • MW: 15µV
• Frequency response: 20 - 13'000 Hz, ± 1 dB
• Distortion factor:
  • FM, 1 kHz: < 0.3 % (mono), < 0.4 % (stereo)
• Signal-to-noise ratio:
  • FM: 65 dB (mono), 60 dB (stereo)

MW: 55 dB

• Channel separation: 40 dB (1kHz)
• selectivity: 65 dB
• Co-wave selection: 1.5 dB
• Spurious wave selection:
  • FM: 80 dB

MW: 25 dB

• Image frequency attenuation:
  • FM: 55 dB
  • MW: 40 dB
• IF attenuation:
  • FM: 60 dB
  • MW: 40 dB
• AM suppression: 50 dB

CD-4 demodulator section:

• Input sensitivity: 2.5 mV
• Input impedance: 100 kOhm
• Distortion factor: 0,07
• Signal-to-noise ratio: > 70 dB
• Channel separation at 1 kHz:
  • Left to Right: 40 dB

Front to rear: 25 dB

• Frequency range: 30 - 15'000 Hz

Special Features

• 4 VU meters
  • Range switchable - 10 dB
• Switch for 4-channel RM, SQ, Discrete / Stereo / Mono
• CD-4 built-in
• Bass and Tweeter control separately for Front / Rear

Remarks

• Other models in the same series:
• Technics SA-5200
• Technics SA-5400X
• Technics SA-5600X
• Technics SA-6000X
• Technics SA-6400X
• Technics SA-6700X
• Technics SA-6800X
• Technics SA-7300X
• Technics SA-8000X
• Technics SA-8100X
• Technics SA-8500X

Pictures

• Image: Technics SA-8100 X

• Image: Technics SA-8100 X rear panel.

Links

• External link to website "The Vintage Knob": [[1]]