Hitachi HCA-6500

Data

General

• Manufacturer: Hitachi
• Model: HCA-6500
• Type: Stereo preamplifier
• Years of manufacture: 1977 - 1980
• Made in: Japan
• Color: Silver or Black
• Remote control: no
• Power consumption: 3.5 W
• Dimensions: 435 (W) x 78 (H) x 275 (D) mm
• Weight: 3.5 kg
• Original price approx.: 348 DM

Connections

• Number of inputs: 5

PHONO: 2.5 mV (50 kOhm)

• • TUNER, AUX: 150 mV (40 kOhm)
  • TAPE 1,2: 150 mV (40 kOhm)
• Number of outputs: 3
  • PRE OUT: 1 V ( 4,7 kOhm )
  • TAPE 1,2 REC OUT: 150 mV (1 kOhm)

Technical Data

• Frequency response:
  • PHONO (RIAA): 30-20000 Hz (±0.3 dB).
  • TUNER, AUX, TAPE: 20-20000 Hz (+-0 dB)
• Distortion factor:
  • PHONO:
    • Less than 0.005% at REC OUT level 1 V
    • Less than 0.01% at REC OUT level 20 V
  • TUNER,AUX,TAPE:
    • Less than 0.005%

Signal-to-noise ratio:

• • PHONO: 83 dB (input level 2 mV)
  • TUNER,AUX,TAPE1,TAPE2: 90 dB (output level 1 V)
• Stereo channel separation:
• Tone control:
  • Bass: ±9 dB ( 100 Hz )

Treble: ±9 dB ( 10 kHz )

• Loudness: (when volume control is set to -30dB)
  • +6 dB (100 Hz)
  • +5 dB (10 kHz)
• Low Filter (Subsonic): 20 Hz (6 dB/oct.)
• Mute: automatic at power on/off and manual
• Direct/Line-Straight: yes, "Tone defeat

Special Features

• From the Service Manual:
  • Low distortion, high signal-to-noise ratio equalizer.
  • ICL, DC equalizer amplifier
  • Rumble filter that suppresses whine and ultra-low frequency rumble without degrading sound quality.
  • Click-stop volume and tone controls

Tone-defeat switch ** Built-in muting circuitry Built-in muting circuit

Remarks

• Other preamps in the same series:
• Hitachi HCA-6500
• Hitachi HCA-7500
• Hitachi HCA-8300

• Other power amplifiers in the same series:
• Hitachi HMA-6500
• Hitachi HMA-7500
• Hitachi HMA-8300

Pictures

• Image: Hitachi HCA-6500 / HMA-6500