Dual CR 1750

Data[edit]

General

  • Manufacturer: Dual
  • Model: CR 1750
  • Years of manufacture: 1979 - 1981
  • Made in: Japan
  • Color: Metallic silver, Metallic brown
  • Remote control: no
  • Power consumption: 450 W (at rated power)
  • Dimensions: 440 x 150 x 405 mm (WxHxD)
  • Weight: 14 kg
  • Original price approx.: 1'198 DM


Connections

  • Number of inputs:
    • Phono (MM): 1.5 mV / 47 kOhm
    • AUX, Monitor In, 2x Tape In: 150 mV / 470 kOhm
    • Main In
  • Number of outputs:
    • 2x Tape Out, Monitor Out: 320 mV, DIN 10 mV
    • Pre Out
    • Headphones (6.3 mm jack, front)
    • 2 pairs of speakers


Technical Data

Amplifier

  • Continuous power (at distortion)

8 Ohm: 2x 50 W

    • 4 Ohm:
  • Dynamic power
    • 8 Ohm: 2x 75 W
    • 4 Ohm:
  • Total harmonic distortion: 0,04 %
  • Attenuation factor: > 20
  • Frequency response:
    • 10 - 60,000 Hz (DIN 45 500)

10 - 40,000 Hz (±1.5 dB)

  • Signal-to-noise ratio: (DIN, nominal power)
    • Phono: > 65 dB

High level: > 85 dB

  • Stereo channel separation:
  • Tone control:
    • Bass: yes, ±15 dB at 50 Hz

treble: yes, ±15 dB at 15 kHz

  • Loudness: yes
  • High Filter: yes, -3dB at 8.5 kHz (12 dB/oct)
  • Low Filter (Subsonic): yes, -3dB at 70 Hz (12 dB/oct)
  • Mute: yes
  • Direct/Line-Straight:


Tuner

  • Reception: FM, MW
  • Frequencies:
    • FM: 87.5 - 104.05 MHz

MW: 513 - 1,602 kHz

  • Frequency response: 40 - 12,500 Hz
  • Input sensitivity:
    • FM: 0.6 µV (mono), 18 µV (stereo).

MW: 15 µV

  • Distortion factor: 0.3% (mono/stereo)

Signal-to-noise ratio: 60 dB (mono/stereo)

  • Channel separation:
  • Selectivity: 85 dB
  • Co-wave selection:
  • Spurious wave selection:
  • Image frequency attenuation: 75 dB
  • IF attenuation: 100 dB
  • AM suppression:
  • Output level: for TB(1kHz,5mV at phono input) at cinch-> 320mV; at DIN(10kOhm)-> 10mV.

RDS: no

  • Station memory: 6


Special Features

  • Separable pre-/power stage


Remarks[edit]


Pictures[edit]

  • Extract from brochure: Dual CR 1750

Dual CR-1750-1.jpg


  • Extract from brochure: Dual CR 1750 / CR 1780

Dual CR-1750-CR-1780-Prospekt-1.jpg


Reports[edit]

Links[edit]