JVC 4VN-990

Data

General

• Manufacturer: JVC
• Model: 4VN-990
• Type: Quadrophonic amplifier
• Years of manufacture: 1973 - 1976
• Made in: Japan
• Color: front champagne, housing sheet metal gray
• Remote control: yes, 4-channel cable remote control for volume and balance
• Power consumption: 310 W
• Dimensions: 422 x 137 x 397 mm (WxHxD)
• Weight: 16 kg
• New price approx.: 600 US-$, corresponds to about 1'900 DM

Connections:

• Number of inputs:
  • Phono 1, 2: 2.5 mV, 50 kOhm, max. 170 mV
  • AUX 1, 2, 3: 150 mV, 100 kOhm
  • Tape Play 1, 2: 150 mV, 100 kOhm
  • Main In: 700 mV, 50 kOhm
• Number of outputs:
  • Tape Rec 1, 2: 200 mV, 12 kOhm
  • Tape Rec DIN: 30 mV, 80 kOhm
  • Pre Out: 4 V, 1.2 kOhm
  • 2 speaker pairs: 1 x front, 1 x rear
    • 4-channel: 4 - 16 Ohm
    • 2-channel BTL: 8 - 16 Ohm
  • 2 x headphone output front + rear: 6.3 mm jack each

Technical data:

• Continuous power: Quadrophonic, 20-20 kHz
  • 8 Ohm: 4 x 35 Watt

4 Ohm: 4 x 38 Watt

• music power: quadrophonic, 20-20 kHz
  • 8 Ohm: 4 x 66 Watt
  • 4 Ohm: 4 x 70 Watt
• Continuous power: BTL Stereo, 20- 20 kHz
  • 8 Ohm: 2 x 88 Watt
  • 4 Ohm:
• Music power: BTL Stereo, 1 kHz
  • 8 Ohm: 2 x 155 Watt
  • 4 Ohm:
• Total harmonic distortion: 0.5 % at rated power
• Attenuation factor: 50 at 8 Ohm, 1 kHz
• Frequency response: 10 - 50'000 Hz, ± 1 dB
• Spurious voltage spacing: 90 dB
• Channel separation: 50 dB (1 kHz)
• Signal-to-noise ratio:
  • Phono: 65 dB

High Level: 75 dB

• Equalizer 5 controls:
  • Equalizer center frequencies: 40 Hz, 250 Hz, 1 kHz, 5 kHz, 15 kHz.
• Control range: ± 12 dB
• Loudness: yes, + 12 dB at 50 Hz, + 6 dB at 10 kHz
• Low Filter (Subsonic): - 3 dB at 50 Hz
• High Filter: - 3 dB at 7 kHz
• Muting:

Special Features

• 4 VU meters
• 4 channels individually adjustable
• Flip-down flap for little-used controls such as:
  • Headphones
  • Level VU meter
  • Loudspeaker switch

remote control

• • Filter
  • Tape Monitor
  • SEA Linear Switch V + H
  • Loudness Switch V + H

Remarks

• Overview JVC Quadro Amplifier:
  • JVC 4VN-550
  • JVC 4VN-770
  • JVC 4VN-880
  • JVC 4VN-990
  • JVC JA-X 9

• tuner
  • JVC VT-700

• Equalizer:
  • JVC SEA-V 7 E

• CD-4 Demodulator:
  • JVC 4 DD-5

Pictures

• Extract from brochure: JVC 4VN-990

• Picture: JVC 4-channel cable remote control for volume and balance

• Introduction to JVC 4-channel playback technology.

Links

• [[Introduction to Kenwood 4-channel playback technology
  • Introduction Kenwood 4-channel playback technology