Accuphase DAC-50 innstikkskort

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Beskrivelse

DAC-50The DAC-50 is an optional digital input board that supports a broad range of digital sound sources and is equipped with a high-precision MDS type D/A converter for optimal sound quality. The converter uses AK4490EQ chips from Asahi Kasei Microdevices in a double parallel configuration per channel. Installing the board in a slot on the rear panel of a supported Accuphase component provides direct input capability for signals from digital components for high-grade playback. Three types of inputs are provided: USB (Type B), OPTICAL (for optical fiber cable), and COAXIAL (for coaxial cable). The USB input handles signals up to 11.2 MHz / 1-bit 【DSD】 and 384 kHz / 32-bit【 PCM】, the coaxial input supports up to 192 kHz / 24-bit and the optical input up to 96 kHz / 24-bit.

 

Function

  • An automatic change of the coax input / optical fiber /USB input
  • Automatic recognition of number of sampling frequency /bit /MHz de-emphasis

Guaranteed specifications

    • USB      :USB 2.0 High Speed (480Mbps) compliant
      :Sampling frequency DSD/2.8224MHz,5.6448MHz,11.2896MHz(1bit)
      :PCM/ 32kHz~384kHz,32bit
    • OPTICAL:JEITA CP-1212 compliant
      :Sampling frequency 32kHz~96kHz, 24bit
    • COAXIAL:IEC 60958/AES-3 compliant
      :Sampling frequency 32kHz~192kHz, 24bit

 

  • About sampling frequency display
    when DAC-50 is installed in C-2120, E-600, E-470, E-370, or E-270Sampling frequencies up to 192 kHz are shown as is.
    Signals with the following sampling frequencies are handled without problem,
    but the indication is always «192.0 kHz»:
    【DSD】 2.8224 MHz, 5.6448 MHz, 11.2896 MHz
    【PCM】 352.8 kHz – 384 kHz

 

* The reproduction of music data by the USB depends on OS on the PC and softwareof music reproduction.

* Please refer to the manual of the PC for setting and the connection method of the PC about USB.

Supplied accessories

  • USB Utility CD-ROM

Connection

* If multiple input signals are supplied at the sametime, the unit automatically locks onto a signal when»OPTION 1″ is selected, using the following priority sequence: COAXIAL → OPTICAL → USB

* To exclude a signal from being selected, either disconnect the cable or turn power of the respective equipment off.

 

Photo shows option board installation exampe.

Connection example of DAC-50