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⑨Wide Range Analog Input/Output Board for DG-28/DG-38
ANALOG
INPUTS
OUTPUTS
LEFT
LEFT
0 6
-6
dB
GAIN
RIGHT
RIGHT
model AIO-DGU1
⑩Wide Range Analog Input/Output Board for DG-28/DG-38
ANALOG (BALANCED)
INPUTS
OUTPUTS
LEFT
LEFT
0 6
dB
-6
GAIN
RIGHT
RIGHT
1 GHT
2 -
3 +
model AIO-DGB1
The AIO-DGU1/AIO-DGB1 accepts an analog signal from the preamplifier and converts it to digital form using a
high-precision 24-bit delta-sigma A/D converter with a sampling frequency of 48 kHz. It then passes this signal
on for equalization by the DG-28. Analog signal components above 24 kHz are routed directly to the output
using a high-pass filter. The signal equalized by the DG-28 is converted to analog form using a high-precision
24-bit MDS type D/A converter. The resulting signal is mixed to the bypassed components and then sent to the
power amplifier.
Level
f
Analog
IN
From
preamplifier
Analog
OUT
To power
amplifier
Level
f
24kHz
Allows analog connection of the DG-28 for sources using sampling frequencies
above 48 kHz.
Occupies four option board slots of the DG-28.
●
Designed for unbalanced connections.
●
※ Requires audio cables with RCA type phono plugs, such as the SL-15G from
Accuphase.
Allows analog connection of the DG-28 for sources using sampling frequencies
above 48 kHz.
Occupies four option board slots of the DG-28.
●
Designed for balanced connections.
●
※Requires balanced audio cables, such as the SLC-15 from Accuphase.
Σ A/D
Converter
Level
High-Pass
Filter
24kHz
MDS D/A
Converter
Block diagram of AIO-DGU1/AIO-DGB1
Level
f
24kHz
EIAJ
CP-1201
Encoder
f
EIAJ
CP-1201
Decoder
Level
f
24kHz
32
AIO-DGU1
AIO-DGB1
DG-28
Option
board
slots
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