Accuphase
Digital Inputs DAC-50
The 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 |
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| Optical |
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| Coaxial |
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| About sampling frequency display |
【PCM】 352.8 kHz – 384 kHz【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 EXAMPLE
CONNECTION EXAMPLE OF DAC-50
USB
| Format | USB 2.0 Hi-Speed (480 Mbps) compliant |
| Sampling Frequency |
2.8224 MHz, 5.6448 MHz, 11.2896 MHz (1-bit 2-channel DSD) (11.2896 MHz: ASIO only) 32 kHz – 384 kHz (16 – 32-bit 2-channel PCM respectively) |
| Suitable Cable | USB 2.0 cable with Type B connector (max. 2 m) |
OPTICAL
| Format | JEITA CP-1212 compliant |
| Sampling Frequency | 32 kHz – 96 kHz (16 – 24-bit 2-channel PCM respectively) |
| Suitable Cable | JEITA standard optical fiber cable |
COAXIAL
| Format | IEC 60958 AES-3 compliant |
| Sampling Factor |
32 kHz – 192 kHz (16 – 24-bit 2-channel PCM respectively) |
| Suitable Cable | 75-ohm coaxial digital cable |
ABOUT SAMPLING FREQUENCY DISPLAY WHEN DAC-50 IS INSTALLED IN C-2120, E-600, E-470, OR E-270
Sampling 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
SUPPORTED MODELS
● Preamplifiers C-2000, C-2110, C-2120, C-245 (※), CX-260 (※)
● Integrated amplifiers E-213, E-250, E-260, E-270, E-307 (※), E-308 (※), E-350, E-360, E-370, E-408, E-450, E-460, E-470, E-530, E-550, E-560, E-600, E-650
Input selection, sampling frequency display and other specifications differ depending on the model. (※: Installing two DAC-XX boards is not supported.)
*The capability for playback of music data via USB depends on the operating system and music playback software of the computer.
* For information on settings for USB and connection methods, please refer to the computer documentation.
SUPPLIED ACCESSORY
● USB Utility 2 CD-ROM
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