Hitachi HCA-8300

Data

General

• Manufacturer: Hitachi
• Model: HCA-8300
• Type: Preamplifier
• Years of manufacture: 1976 - 1979
• Made in: Japan
• Color: Black
• Remote control: no
• Power consumption: 9.5W (120V~), 11W (220 - 250V~)
• Dimensions: 435 (W) x 152 (H) x 308 (D) mm
• Weight: 7 kg
• Original price approx.: 60,000 Yen (Japan, 1976), 1'000 DM

Connections

• Number of inputs: 7
  • PHONO 1: 2 mV - 6 mV (50 kOhm)
  • PHONO 2: 2 mV (50 kOhm)
  • TUNER, AUX 1, AUX 2: 100 mV (50 kOhm)
  • TAPE 1, Tape2: 100 mV (50 kOhm)
• Number of outputs:
  • PRE OUT: 1 V (6000hm)
  • TAPE REC OUT: 100 mV (600 Ohm)
  • TAPE REC OUT (DIN): 40 mV (80 kOhm)
  • PHONES OUT: 70 mV (90 Ohm)

Specifications

• Frequency response:
  • PHONO 1, PHONO 2 (RIAA): 20-20000 Hz (±0.2 dB).
  • TUNER, AUX 1, AUX 2: 5- 100000 Hz (+0 / -1.5 dB)

Distortion factor:

• • PHONO 1, PHONO 2:
    • Less than 0.005% at REC OUT level 1 V
    • Less than 0.01% at REC OUT level 20 V
  • TUNER, AUX 1, AUX 2:
    • Less than 0.005% at PRE OUT level 1 V
    • Less than 0.01% at PRE OUT level 7 V

Signal-to-noise ratio:

• • PHONO 1, PHONO 2: 75 dB (input level 2 mV)
  • TUNER, AUX 1, AUX 2: 100 dB (input level 100 mV)
  • TAPE 1, TAPE 2: 100 dB (input level 100 mV)
• Stereo channel separation:
• Tone control:
  • Bass: ±10 dB (50 Hz, 100 Hz transition at 150 Hz, 300 Hz).

Treble: ±10 dB (10 kHz, 20 kHz transition at 3 kHz, 6 kHz) Loudness: (when volume control is set to -30dB)

• • +8 dB (100 Hz)

+4 dB (10 kHz)

• High Filter: 8 kHz (6 dB/oct.)
• Low Filter (Subsonic): 20 Hz (12 dB/oct.)
• Mute: automatic
• Direct/Line-Straight: yes, "Tone defeat

Special Features

• From the Service Manual:
  • ICL equalization circuit for Hi-Fi record playback.
  • RIAA elements with a tolerance of +/-1%.
  • Low distortion and low noise tone control circuitry
  • Tone control for each KAnal with new tone control circuitry

Rumble filter that flawlessly suppresses whine and ultra-low-frequency rumble without degrading sound quality

• • Headphone amplifier circuitry for quick and easy monitoring control
  • New quad volume control with 32 contact tips for accurate volume control and wide noise margin
  • Three independent gain selector switches with addition for extended fine adjustment range
  • Phono 1 level control with fine adjustment
  • Built-in muting circuit with reed relay

Remarks

• Other models in the same series:
• Preamplifier:
• Hitachi HCA-8300

• Power amplifier:
• Hitachi HMA-8300

Pictures

• Image: Hitachi HCA-8300

• Image: Hitachi HCA-8300

• Excerpt from brochure: Hitachi HCA-8300, HMA-8300