Harman/kardon HK 725

Data

General

• Manufacturer: Harman/kardon
• Model: HK 725
• Model range: HK 700 Series
• Type: Preamplifier
• Years of manufacture: 1980 - 1983
• Made in: Japan
• Color: Silver
• Remote control:
• Power Consumption:
• Dimensions: 385 x 72.5 x 320 mm (WxHxD).
• Weight: 4,2 kg
• Original price approx.: 330 US-$, 750 DM

Connections

• Number of inputs:
  • Input sensitivity:
  • Phono MM: 2.3 mV, 47 kOhm, 250 mV max.

Line: 145 mV, 23 kOhm Tuner: 145 mV, 23 kOhm AUX: 145 mV, 23 kOhm

• • Tape Play 1, 2: 145 mV, 23 kOhm
• Number of outputs:
  • Outputs:
  • Tape Rec 1, 2: 145 mV, 23 kOhm
  • Tape Rec DIN: 30 mV
  • Headphones:

Specifications

• Frequency response:
  • Phono (RIAA): 20 - 20'000 Hz, ± 0.2 dB.

High level: 10 - 100'000 Hz, + 0 dB, - 1 dB Signal-to-noise ratio:

• • Phono: 90 dB

High level: 106 dB

• Tone control
  • Bass: ± 8 dB at 100 Hz

Treble: ± 8 dB at 10 kHz

• Loudness (Bass Contour): + 10 dB at 50 Hz
• High Filter (High Cut): 6 kHz, 6 dB / octave
• Low Filter (Subsonic): 15 Hz, 6 dB / octave

Special Features

• Tone control via jog keys

Remarks

• Other models in the same series:
• Integrated amplifier:
• Harman/kardon HK 750

• Preamplifier:
• Harman/kardon HK 725

• Power amplifier:
• Harman/kardon HK 770
• Harman/kardon HK 775

• Tuners:
• Harman/kardon HK 710
• Harman/kardon HK 715

• Receiver:
• Harman/kardon HK 740

• Tape Deck:
• Harman/kardon HK 705

• Turntable:
• Harman/kardon HK 720

Pictures

• Extract from brochure: Harman/kardon HK 725

• Excerpt from brochure: Harman/kardon HK 700 Series

Links

• External link to website "The Vintage Knob": [1]

• External link on website "The Vintage Knob": [2]