Nakamichi 630
Data[edit]
General
- Manufacturer: Nakamichi
- Model: 630
- Type: Tuner preamplifier
- Years of manufacture: 1977 - 1980
- Made in: Japan
- Color: Black
- Remote control:
- Power consumption: 20 W
- Dimensions (WxHxD): 400 x 170 x 237 mm
- Weight: 7 kg
- Original price approx.: 1'800 DM
Connections
- Number of inputs:
- Phono MM: switchable 1 mV, 2 mV, 5 mV / 100 kOhm.
- AUX: 100 mV / 100 kOhm
- Tape Play 1, 2: 100 mV / 100 kOhm
- Antenna: 75 Ohm, 300 Ohm
- Number of outputs:
- Tape 1, 2 Rec: 100 mV / 50 kOhm
- Pre Out: 1 V / 10 kOhm
- Headphones: 40 mW at 8 Ohm (6.3mm jack plug)
Technical Data
Preamplifier
- Frequency response:
- Phono: 30 - 15'000 Hz
High level: 20 - 50'000 Hz
- Distortion factor: < 0,003 %
- Signalrauschabstand:
- Phono: >80 dB
High level: > 102 dB
- Tone control
Bass: ± 9 dB / 20 Hz
- Treble: ± 9 dB / 20 kHz
- Contour Filter: adjustable
- at - 8: - 14 dB / 20 Hz, - 30 dB / 3 kHz, - 25 dB / 20 kHz
- Loudness:
- High Filter:
- Low Filter (Subsonic):
- Mute:
- Direct/Line-Straight:
Tuner
- Reception: FM
- Frequencies:
- FM: 87.5 - 108 MHz
- Frequency response: 50 Hz - 15 kHz, + 0 dB, - 1.5 dB
- Input sensitivity
FM: 1.5 µV
- Distortion factor:
- Wide: 0.08 %
Narrow: 0.3
- FM Dolby:
- Dolby Off: 65 dB
- Dolby On: 70 dB
- Signal to noise ratio: 67 dB
- Channel separation: 45 dB
- Separation:
- Wide: > 45 dB
- Narrow: > 90 dB
- Crosstalk attenuation:
- Wide: > 55 dB
Narrow: > 30 dB
- Common mode selection: 1.0 dB
- Spurious selection: 100 dB
- IF attenuation: 100 dB
- IF attenuation: 100 dB
- AM suppression: 60 dB
Special Features
- Tape dubbing
- FM muting
- VHF Dolby
Comments[edit]
- Other models in the same series:
- Preamplifier:
- Nakamichi 410
- Nakamichi 610
- Power amplifier:
- Nakamichi 420
- Nakamichi 620
Pictures[edit]
- Extract from brochure: Nakamichi 630
Reports[edit]
- Report in "FonoForum" 12 / 1977
Links[edit]
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