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





Pictures

  • Extract from brochure: JVC 4VN-990

JVC Quadro-Technologie-2.jpg


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

JVC Quadro-Technologie-2.jpg


  • Introduction to JVC 4-channel playback technology.

JVC Quadro-Technologie-2.jpg


Reports

Links