Akai AS-970
Data[edit]
General
- Manufacturer: Akai
- Model: AS-970
- Type: Quadrophonic Receiver
- Years of manufacture: 1973 - 1975
- Made in: Japan
- Color: silver, wooden case walnut
- Remote control: yes, cable remote control
- Power consumption: 480 W max.
- Dimensions: 587 x 168 x 397 mm (WxHxD)
- Weight: 17.4 kg
- Original price approx.: 2'400 DM
Connections:
- Number of inputs:
- Phono 1: 3 mV, 50 kOhm, max. 130 mV
- Phono 2: 3 mV, 50 kOhm
- Microphone: 3.8 mV, 50 kOhm
- AUX 1, 2: 180 mV, 100 kOhm
- Tape Play 1, 2, 3: 180 mV, 100 kOhm
Tape Play DIN: 170 mV Main In: 500 mV, 50 kOhm Coaxial FM antenna connection (75 Ohm)
- AM- Antenna connection (300 Ohm)
- Number of outputs:
- Tape Rec 1, 2, 3: 170 mV
Tape Rec DIN: 32 mV
- Pre Out: 500 mV, 4,5 V max.
- 4 x speaker pairs: 2 x front, 2 x rear
- 2 x headphone outputs front + rear: 6.3 mm jack each
Technical Data:
Amplifier:
- Continuous power: Quadrophonic
- 8 Ohm: 4 x 25 Watt
- 4 Ohm:
- Continuous power: Stereo
- 8 Ohm: 2 x 50 Watt
- 4 Ohm:
- Music power: Quadrophonic
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: < 0,5 % bei Nennleistung
- Dämpfungsfaktor: 50 bei 8 Ohm, 1 kHz
- Frequenzgang:
- Phono RIAA: 20 Hz - 20 kHz (8 Ohm), ± 1 dB
- Hochpegel: 20 Hz - 50 kHz ± 3 dB
- Signalrauschabstand:
- Phono: >75 dB
- Line: > 90 dB
- Tone control:
- Bass: ± 10 dB at 100 Hz
Treble: ± 10 dB at 10 kHz
- Loudness: + 8 dB at 100 Hz, + 5 dB at 10 kHz
- Low Filter (Subsonic): - 5 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: 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: 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: 2.0 µV
- MW: 10 µV
- Frequency response: 20 - 15'000 Hz
- Distortion factor FM: Stereo < 0.5 %, < Mono 0,3 %
- Signalrauschabstand:
- UKW: 70 dB
- AM: 50 dB
- Stereo-Kanaltrennung: >40 dB at 1 kHz
- Selectivity:
- FM: 70 dB
MW: 35 dB
- Co-wave selection: 2.0 dB
- Spurious wave selection: > 70 dB
- Image frequency attenuation:
- FM: > 85 dB
MW: > 80 dB IF attenuation:
- FM: > 100 dB
- MW: > 75 dB
- AM suppression: 50 dB
Special Features
- 2 VU meters
- 4-channel systems: CD-4, Discrete, SQ, RM
- Microphone input front, mixable
- MPX Noise Filter
- FM Muting
- Bass / Tweeter control V + H separately
Remarks[edit]
- All models in the same series:
- [[Introduction to Kenwood 4-Channel Playback Technology
Pictures[edit]
- Extract from brochure: Akai AS-970
Reports[edit]
Links[edit]
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