JVC JP-S7

Data

General

• Manufacturer: JVC
• Model: JP-S 7
• Years of manufacture: 1975 - 1982
• Made in: Japan
• Color: Front plastic gray / silver
• Type: Stereo preamplifier equalizer
• Power consumption: 27 watts
• Dimensions: 578 x 162.5 x 268 mm (WxHxD)
• Weight: 8.7 kg
• Original price approx.: 170'000 Yen (1975), 2'500 DM

Connections

• Number of inputs:
  • Phono 1 MM: 2 mV, switchable: 33 kOhm / 47kOhm / 100 kOhm; 100pF / 330pF, max. input voltage: 350 mV (1Khz, RMS).
  • Phono 2 MM: 2 mV, switchable: 33 kOhm / 47kOhm / 100 kOhm; 100pF / 330pF, with input level control on rear panel, max. input voltage: 350 mV (1Khz, RMS)
  • Phono 3 MM: 2 mV, switchable: 33 kOhm / 47kOhm / 100 kOhm; 100pF / 330pF, with input level control on rear panel, max. input voltage: 350 mV (1Khz, RMS)
  • Tuner: 200mV / 70kOhm, max. input voltage: 35 V
  • Aux 1, 2: 200mV / 70kOhm, with input level control on rear panel, max. input voltage: 35 V
  • Tape Play 1, 2: 200mV / 50kOhm
  • Tape Play 1, 2 DIN:
• Number of outputs:
  • Pre Out 1: 1V / 4 kOhm
  • Pre Out 2: 1V / 4 kOhm (with level control)
  • Tape Rec 1 : 200mV / 80kOhm (RCA)

Tape Rec 2 : 200mV / 70kOhm (DIN)

• • Tape Rec 1, 2 DIN:
  • Headphones: 8 - 2000 Ohm

Technical Data

• Frequency response:
  • Phono: 20Hz - 20Khz (±0.3dB, RIAA).

Lines: 15Hz - 100Khz (+0 / -1dB)

• Distortion factor:
  • 0.02% (1Khz, 1V output voltage).

0,05% (1Khz, 5V output voltage)

• Signal-to-noise ratio:
  • Phono: 63 dB (RMS)

Phono: 75 dB (IHF-A) Lines: 86 dB (RMS)

• • Lines: 96 dB (IHF-A)
• Tone control:
  • Tone control with 10 sliders
• Equalizer center frequencies:
  • 32 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz (switchable 12, 16 or 20 kHz).

Control range ± 12 dB (2 dB steps)

• Loudness: + 8 dB at 100Hz, + 4 dB at 10Khz (Vol. -30 dB)
• High Filter: -6dB / octave at 9Khz
• Low Filter (Subsonic): 12 dB / octave at 18 Hz
• Muting: 0 dB, - 20 dB switchable
• Defeat amplifier: 0 dB, - 14 dB switchable

Special Features

• Slider
• Bypass switch
• SEA character switchable: Normal, Reverse

SEA effect: on / off

• Phono control knob under front flap

Remarks

• Other models of the same series:
  • Power amplifier: JM-S 7, see:
    • External link: The Vintage Knob website: [1]

Pictures

• Extract from brochure: JVC JP-S 7 preamp equalizer

Reviews

• Review from Good Old Hifi: [2]

Links

• External link: "Hifi Archive" website: [3]

• External Link: "The Vintage Knob" website: [4]

• External Link: Audio Heritage website: [5]