Akai AS-1070

Data

General

• Manufacturer: Akai
• Model: AS-1070

Type: Quadraphonic Receiver

• Years of manufacture: 1975 - 1977
• Made in: Japan
• Color: silver, wooden case walnut
• Remote control: yes, wired remote control
• Power consumption:
• Dimensions: 520 x 182 x 409 mm (WxHxD).
• Weight: 17,6 kg
• Original price approx.: 1'450 DM

Connections:

• Number of inputs:
  • Phono 1: 3 mV, 47 kOhm, max. 130 mV
  • Phono 2: 3 mV, 47 kOhm
  • AUX: 160 mV, 47 kOhm
  • Tape Play 1, 2: 160 mV, 47 kOhm

Coaxial FM antenna connection (75 Ohm) AM antenna connection (300 Ohm)

• Number of outputs:
  • Tape Rec 1, 2: 150 mV

4 x loudspeaker pairs: 2 x front, 2 x rear

• • 2 x headphone output front + rear: 6.3 mm jack each

Technical data:

Amplifier:

• Continuous power: Quadrophonic

8 Ohm: 4 x 25 W (20 Hz - 20 kHz, 0.3 %)

• • 4 Ohm:
• Continuous power: Stereo
  • 8 Ohm: 2 x 50 W (20 Hz - 20 kHz, 0.3 %)
  • 4 Ohm:
• Music power: Quadrophonic
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: < 0,2 % bei Nennleistung
• Dämpfungsfaktor: 50 bei 8 Ohm, 1 kHz
• Frequenzgang (IHF): 10 Hz - 60'000 Hz
  • Phono RIAA: 20 Hz - 20 kHz (8 Ohm), ± 1 dB
  • Hochpegel: 10 - 60'000 Hz ± 3 dB
• Signalrauschabstand:
  • Phono: >80 dB
  • Line: > 90 dB
• Tone control:
  • Bass: ± 10 dB at 100 Hz

Treble: ± 10 dB at 10 kHz

• Loudness: + 9 dB at 100 Hz, + 4 dB at 10 kHz
• Low Filter (Subsonic): - 10 dB at 50 Hz (6 dB / octave)
• High Filter: - 6 dB at 10 kHz (6 dB / octave)

Muting: - 20 dB

CD-4 Demodulator section:

• Input sensitivity: 1.5 mV
• Input impedance: 4.7 kOhm
• Distortion factor: 0,07
• Signal-to-noise ratio: > 70 dB
• Channel separation at 1 kHz:
  • Left to right: 50 dB

front to rear: 30 dB

• Frequency range: 20 - 15'000 Hz

Tuner:

• Reception: FM, AM
• Frequencies:
  • FM: 87.5 - 108 MHz
  • MW: 525 - 1605 kHz
• Input sensitivity:
  • FM: 1.9 µV
  • MW: 5 µV
• Frequency response: 20 - 15'000 Hz
• Distortion factor FM: Stereo < 0.4 %, < Mono 0,2 %
• Signalrauschabstand:
  • UKW: 70 dB
  • AM: 50 dB
• Stereo-Kanaltrennung: >40 dB at 1 kHz
• Selectivity:
  • FM: 70 dB

MW: 30 dB

• Co-wave selection: 1.0 dB
• Spurious wave selection: > 70 dB
• Image frequency attenuation:
  • FM: > 65 dB

MW: > 55 dB IF attenuation:

• • FM: > 80 dB
  • MW: > 45 dB
• AM suppression: 50 dB

Special Features

• 2 VU meters
• 4-channel systems: CD-4, SQ, Matrix
• FM muting adjustable, slider control
• Bass / Tweeter control V + H separately
• VHF 4-channel output

Remarks

• All models in the same series:
  • Akai AS-1070
  • Akai AS-1080
  • Akai AS-1080 DB

• [[Introduction to Kenwood 4-Channel Playback Technology
  • Introduction Kenwood 4-channel playback technology

Pictures

• Image: Akai AS-1070

Links

• External link to website "The Vintage Knob": [[1]]</Mono></0,2>