Accuphase DP-78 Brochure
m High-grade playback not only of SA-CDs but also of conventional
CDs m Single lens/twin pickup high-speed access mechanism
m Digital processor ready for 2.8224 MHz/1-bit and 192 kHz/24-bit
source formats m MDS++ D/A converter achieves minimal distortion
and outstanding S/N ratio m Transport section outputs and digital
inputs m HS-Link input/output capability via option boards
An SA-CD/CD player of the highest order – Processor section supports high-
DAC
DAC
quality formats such as 2.8224 MHz/1-bit and 192 kHz/24-bit. Further improved
MDS++ D/A converter. Transport section features dedicated DSP for digital
servo and single lens/twin pickup high-speed access mechanism. Separate
construction of transport and processor sections and respective connectors allow
independent use. HS-Link input/output boards available as option.
The Accuphase separate type player combo DP-100 and
DC-101 incorporating HS-Link connectivity is recognized
both in Japan and overseas as the ultimate setup for
SA-CD playback. It is the standard against which all others
have to be measured. And now, the superior technological
know-how gained through the development of this combo
has found another manifestation in the integrated SA-CD/
CD player DP-78. Incorporating the latest advances in
digital technology, the DP-78 is destined to take its place
at the top of its class. By concentrating solely on twochannel sources both in the SA-CD and CD format, the
DP-78 lets you fully enjoy the best that orthodox music
reproduction has to offer.
Ever since its introduction in 1999, the SA-CD catalog of
hybrid discs has been expanding. With its 2.8224 MHz/
1-bit format, the SA-CD stores four times as much
information as a conventional CD at 44.1 kHz/16-bit. This
allows it to realize dramatically superior physical
performance as manifested by wider frequency response
and dynamic range. The DP-78 is equipped to make full
use of this impressive potential. It will let you rediscover
the deep joy and satisfaction that a truly outstanding
musical experience can offer. But the DP-78 not only
handles the SA-CD format with impeccable finesse, it will
bring out the best from conventional CD sources as well.
Be prepared for a wholly new encounter with your entire
musical catalog.
The SA-CD/CD transport section and the processor
section of the DP-78 are kept entirely independent of each
other, to achieve optimum performance in each regard.
The transport features a single lens/twin pickup high-speed
access mechanism, combined with a digital servo
controlled by its own DSP. This advanced approach
assures highly accurate processing of the digital signal
and excellent support for high-sampling-frequency sources
including 2.8224 MHz/1-bit and 192 kHz/24-bit. The
DAC – a key component for determining sound quality –
incorporates a further refined version of the acclaimed
MDS principle, called MDS++. As a result of this non-holdsbarred approach, the DP-78 projects a sound stage of
unprecedented realism and sheer musical perfection.
SA-CD/CD Transport Section Features and Functions
n Digital servo with dedicated DSP assures highly accurate signal pickup for SA-CDs and CDs
n Plays also regular CDs with outstanding quality
n Single lens/twin pickup mechanism minimizes access time
n Support for text data display including disc title and artist name information
n Strong, precision-machined chassis with resonance and vibration resistant construction
n SA-CD/CD transport output via optional HS-Link Output Board DO2-HS1 (see connection example
below)
n “High Carbon” cast iron insulator feet with
superior damping characteristics further
enhance sound quality
n Multi-function remote commander
RC-100 supplied as standard equipment
n Dedicated coaxial and optical connectors
for CD signal output
Assembly with master
`
clock generator, DAI
encoder/decoder, ultra jitter-free PLL circuit, and other digital
signal processing cir-
Transport section outputs
Connection example for effective use of SA-CD/CD transport
DO2-HS1
installed
HS-Link cable
DI2-HS1
installed
cuitry
DP-78
DC-330
DO2-HS1 installed in
OUTPUTS slot
Digital connection for multi-amped system
Using HS-Link, it is possible to keep the connection of DP-78
DC-330 DF-45 entirely in the digital domain until directly before
the power amplifier. The various components are connected with
HS-Link cable.
DF-45
HS-Link cable
For 5-way configuration and
higher: to additional DF-45
High
Analog output
(2-way configuration)
Low
Power amplifier
Power amplifier
Digital
Inputs
Option
Slots
SA-CD/ CD
Coaxial
Optical
Option 1
Option 2
SA-CD
Optical
Head
CD
Optical
Head
Motor
Driver
Accuphase Original Digital Interface
Digital
Signal
Processor
×
RF
Signal
Processor
Digital
&
Servo
Processor
Ultra
Jitter-Free
PLL
Interface
Decoder
2
DSP
CP-1201
Encoder
Clock
Generator
++
MDS
D/A Conversion System
DAC
×
6
++
MDS
D/A Conversion System
DAC
×
6
CP-1201
Driver
Key
Matrix
Master
Control
Computer
Infrared
Receiver
Linear Phase
Low-Pass
Filter
Linear Phase
Low-Pass
Filter
Display
Buffer
Buffer
DP-78 Block Diagram
Coaxial
Optical
Unbalanced
Balanced
Unbalanced
Balanced
Transport
Outputs
Left
Analog
Outputs
Right
Analog
Outputs
HS-Link is an ultra high-quality digital audio interface developed by
Accuphase using the latest digital signal transmission technology. It
supports send/receive verification for copyright protection. The LVDS
(Low Voltage Differential Signaling) principle allows a single dedicated
HS-Link cable to transmit signals using advanced digital audio formats
such as 2.8224 MHz/1-bit or 192 kHz/24-bit. Because digital audio
data are transmitted with utmost fidelity, the sound quality achieved
by HS-Link is outstanding.
Digital
Audio
Signal
HS-Link Block Diagram
HS-Link: High Speed Link
TIA/EIA-644
LVDS
Driver/Receiver
HS-Link
Encoder
Security
Control
RJ-45
Connector
Connector
TIA/EIA-644
LVDS
Driver/Receiver
RJ-45
TIA/EIA-568A CAT.5
STRAIGHT CABLE
HS-Link
Decoder
Security
Control
Digital
Audio
Signal
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