Accuphase DF-55

Data

General

• Manufacturer: Accuphase
• Model: DF-55
• Type: Active crossover
• Years of manufacture: 2011 - 2017
• Made in: Japan
• Color: Champagne
• Power consumption: 29 W
• Dimensions (WxHxD): 465 x 151 x 396 mm
• Weight: 14,7 kg
• Original price 14'000 Euro

Connections

• Number of inputs:
  • Analog:
    • Line: 3.7 V max. 20 kOhm
    • XLR: 3.7 V max. 40 kOhm
      • A/D converter principle: 1-bit delta-sigma modulation
        • Sampling frequency: 176.4 kHz
        • Quantization: 24 bit
  • Digital:
    • Digital Inputs:
      • COAXIAL Format: IEC 60958/AES3 compatible
      • Sampling frequencies 32 kHz to 192 kHz (16 to 24 bit, 2-channel PCM)
        • OPTICAL Format: JEITA CP-1212
      • Sampling frequencies 32 kHz to 96 kHz (16 to 24 bit, 2-channel PCM)
        • HS-LINK Connection format: RJ-45, HS-LINK cable
          • Ver. 1 Sampling frequencies 32 kHz to 192 kHz (24 bit, 2-channel PCM)
          • Ver. 2 Sampling frequencies 32 kHz to 384 kHz (32 bit, 2-channel PCM)
          • (352.8 kHz and 384 kHz are converted to 176.4 kHz and 192 kHz, respectively).
• Number of outputs: 4
  • Analog:
    • Line: 2.5 V max. 50 Ohm
    • XLR: 2.5 V max. 50 Ohm
  • Digital output HS-LINK: Connection format: RJ-45, special HS-LINK cable.
    • Minimum load impedance BALANCED / LINE: 600 Ohm

Technical Data

• Frequency response: 2 Hz - 50 kHz (+ 0 dB / -3 dB)

Distortion factor: 0.007 % (20 Hz - 20 kHz) Signal-to-noise ratio: 121 dB

• Dynamic range: 118 dB
• Crosstalk attenuation: 108 dB (20 Hz - 20 kHz)
  • Attenuation characteristics 6 dB/octave, 12 dB/octave, 18 dB/octave, 24 dB/octave, 48 dB/octave, 96 dB/octave
    • At crossover frequency of 10 Hz: 48 dB/octave and 96 dB/octave are not available, 20 Hz: 96 dB/octave is not available
• "Analog ATT" level setting range Off: -40 to + 12.0 dB (0.1 dB steps)

Analog ATT" On: -50 to + 2.0 dB (0.1 dB steps)

• • • Separate setting for left and right possible

Special Features

• Memory display, shows the selected memory number and information for storing / recalling settings.

Remarks

• Other models in the same series:
• Accuphase DF-35
• Accuphase DF-45
• Accuphase DF-55
• Accuphase DF-65

Pictures

• Extract from brochure: Accuphase DF-55