Hitachi HCA-6500

Data[edit]

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[edit]



Pictures[edit]

  • Image: Hitachi HCA-6500 / HMA-6500

Hitachi HCA-HMA-6500-1.jpg


Reports[edit]

Links[edit]