Accuphase DG-38 Brochure
m Fully digital signal processing Voicing Equalizer m 40bit floating
point DSP devices m Separate digital filters for V oicing and Equaliz er
sections m Wide-format color LCD panel allows direct writing of
response curve with stylus pen m 20 pattern memory m Real-time
spectrum analyzer m Analog connection possible via option boards
Create your ideal listening environment with a stroke of the pen the
Digital Voicing Equaliz er makes this dream a r eality. Separate sound f ield
compensation (Voicing) and sound field creation (Equalizer) functions
implemented using powerful DSP devices and advanced signal processing
technology. Large, wide-format color display panel allows use of a stylus
pen to directly draw or modify a curve. Connection to analog components
possible using option boards.
What is a "V oicing Equalizer"?
This somewhat unusual term was chosen to symbolize the advanced capabilities
of the DG-38. While this product is a full-fledged high-precision graphic equalizer in
its own right, it also incorporates a sophisticated system for automatic sound field
compensation. It divides the audible frequency range into distinct bands (voices),
and lets the user choose a target response curve that is then expressed (voiced)
by the unit through a process of precise measurement and adjustment steps. The
result is full control over frequency response characteristics at the listening position.
Through creative use of the capabilities offered by the DG-38, the scope of sound
reproduction in the home environment can be significantly enhanced. Get ready to
experience a new dimension of music enjoyment.
When wishing to reproduce high-quality
program sources with optimum fidelity,
the characteristics of the entire
reproduction chain including the speakers
as well as the listening room itself have to
be taken into consideration. The Digital
Voicing Equaliz er DG-38 was created with
this fact in mind. It embodies Accuphase's
highly advanced knowledge of digital
signal processing technology for audio
applications. Latest high speed DSP chips
as well as HS-Link input and output
capability make the DG-38 perfectly
suited to handle all high-quality program
sources including SACD.
Functionally , the DG-38 is divided into two
equalizing modules. The first is the
VOICING module designed to provide
sound field compensation, and the
second is the EQUALIZER module that
lets the user creatively and actively shape
the sound field. These central DSP
functions are handled by four 40bit floating
point SHARC processors from Analog
Devices. The
display of the
DG-38 is a
supremely
large, wideformat color
LCD that is
configured as a
touch panel. It lets you simply draw a
desired frequency curve with the supplied
stylus pen and immediately hear the
results. Control of other functions is also
easily accomplished with this panel. A
spectrum analyzer function has been
newly incorporated, providing a visual
representation of the spectral content of
any source in real time.
The DG-38 can be connected to other
digital Accuphase components such as
the DP-100/DC-101, DC-330, DP-85, and
DP-77 via the HS-Link interface. Analog
components can be accommodated by
installing suitable analog input/output
option boards.
DG-38 Features
n Fully digital V oicing Equalizer with 40bit floating point
DSP devices for digital signal processing.
n 192 kHz/24 bit input/output interface
n Two equalizing modules: sound field compensation
(VOICING) and sound field creation (EQUALIZER)
n Large, wide-format color LCD panel (154 × 58 mm)
n Touch panel and supplied stylus pen
Allows direct drawing of response curve on
•
screen
Cursor keypad can be called up for pinpoint
•
operation and touchup
Call up cursor pad to select frequency and adjust level
by moving cursor right and left or up and down.
Control functions by tapping or dragging symbols
•
displayed on screen
n 20 memory slots to store entire patterns including
target curve, pre-compensation curve, postcompensation curve, equalizer curve etc. Data sets
can be given a name and called up or modified at
any time.
n RS-232 connector for interfacing with a computer
n Sound field measurement microphone AM-28
supplied
Call up input panel for character
input or editing
Fig. 1 DG-38 Block Diagram
Supplied stylus pen can be used to draw any
desired response curve.
n Supplied Remote
Commander RC-30
Controls input selector,
equalizer on/off, memory
recall, memory number
up/down.
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