Accuphase DP-77 User Manual

31
⑧WideRangeDigitalInput/OutputBoard DIO2-DG1
Allows digital connection and sound field processing with the DG-28 of digital signals
with sampling frequencies above 48 kHz, such as SACD.
Designed for installation in the EXT DSP slot of the DC-330 etc. Allows digital connection
of the DG-28.
＊ The board requires two slots. It can only be used in the DC-330 if the OPTION 1 slot and
EXT DSP slot are empty.
＊ Requires a 75-ohm coaxial digital cable.
DIGITAL
INPUT
OUTPUT
DIO2-DG1
The DIO2-DG1 accepts a wide-band, high sampling frequency signal and converts the sampling frequency to 48
kHz or 44.1 kHz. It then sends only the signal components in the audible range up to 24 kHz (or 22.05 kHz) to the
DG-28 for equalization. The signal components above 24 kHz (or 22.05 kHz) are routed directly to the output
using a high-pass filter. The equalized signal from the DG-28 is mixed to the bypassed components and then
returned to the DC-330 etc. in digital form.
※For connection examples, see page 25.
 Note
The Digital OUT cannot be used for recording on CD-R, MD, DAT, or similar recorders.
Sampling
Frequency
Converter
HighPass
Filter

DC-330

EXTDSP
slot
EIAJ
CP-1201
Encoder
Sampling
Frequency
Converter
EIAJ
CP-1201
Decoder
DigitalOUT
DigitalIN
BlockdiagramofDIO2-DG1
Level
f
24kHz
Level
f
24kHz
Level
f
Level
f
24kHz
Level
f
24kHz
DelayTime
Compensator
ToDG-28
FromDG-2
8


Accuphase DP-77 Specifications

Optical Specifications

SACD wavelength	650 nm
CD wavelength	780 nm
Optical output wavelength	660 nm

Digital Processor Specifications

Sampling frequencies	32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz
High sampling frequencies	176.4kHz, 192kHz
Dynamic range	114 dB

Power

AC voltage	120V/230V 50/60Hz
Power consumption	24 W
Net weight	17.7 kg

Weight and Dimensions

Width	475 mm
Height	151 mm
Depth	397 mm