m Totally separate SCAD/CD transport and processor sections m Single
lens/twin pickup high-speed access mechanism m Digital processor
ready for new-generation source f ormats m MDS type D/A converter
with extraordinary conversion precision m Transport section outputs
and digital inputs m Option board slots for added versatility
Integrated SACD/CD player with HS-Link. Ready for new-generation formats such as
2.8224 MHz/1 bit and 192 kHz/24 bits. Revolutionary MDS (Multiple Delta Sigma) converter. T ransport section with dedicated DSP for digital ser vo control and single lens/twin
pickup high-speed access mechanism. Entirely separate construction of transport and
processor sections, with HS-Link and coaxial transport output and digital inputs.
The Super Audio CD (SACD) is now the pinnacle
format of pure audio. Based on the expertise
gained with the separate type SACD/CD play er
combo DP-100 and DC-101, Accuphase
developed the DP-85 using the latest advances
in digital technology . The result is an integrated
SACD/CD player of the highest quality. The
DP-85 lets you fully enjoy the amazing dynamic
range of SACD/CD sources. The superb sound
quality is sure to capture the heart of any
audiophile.
The transport section of the DP-85 features a
dedicated DSP for the digital servo circuitry and
a single lens/twin pickup high-speed mechanism
for totally accurate signal readout and almost
instantaneous access time. The processor
section is ready for the latest word in quality
such as 2.8224 MHz/1-bit and 192 kHz/24-bit
sources. The MDS (Multiple Delta Sigma) D/A
converter employs multiple strictly selected
delta sigma units in a parallel configuration,
assuring unprecedented conversion precision.
Although housed in one enclosure, the SACD/
CD transport section and the processor section
of the DP-85 can be used entirely independent
of each other, thanks to the HS-Link and coaxial
outputs and the digital inputs. Slots for option
boards are provided as well, resulting in
unsurpassed versatility for no-compromise
reproduction of music. The DP-85 represents
digital audio at its best, allowing the audio
connoisseur to rediscover what music is all
about.
[
SACD/CD T ransport Section] Features and Functions
n Digital servo with dedicated DSP assures highly accurate signal pickup for SA CD and CD
n Plays also regular CDs with impressive quality
n Single lens/twin pickup mechanism minimizes access time and SACD/
CD switching time
n Compatible with super high quality digital audio interface HS-Link
developed by Accuphase; one RJ-45 HS-Link output connector built in
n Dedicated coaxial connector for CD signal output
n Text data display shows disc and title name, ar tist name, and other
information
n Strong chassis with resonance and vibration resistant construction
Assembly with transport outputs (HS-Link,
coaxial) and digital inputs (optical, coaxial)
n "High Carbon" cast iron insulator feet with superior damping characteristics further enhance sound quality
n Multi-function remote commander RC-28 supplied as standard equipment
Connection examples for effective use of SACD/CD transport
The HS-Link output of the transport section can be used to combine the unit with a DC-330, DC-101, DG-28, etc.,
using dedicated HS-Link cable. With the DC-330 → DF-35 combination, a multi-amplified system entirely in the digital
domain can be constructed.
Sound field compensation with DG-28 connected to DC-330
HS-Link cable
Coaxial digital
cable
DI2-HS1
installed
Analog outputs
DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)
Multi-amplified system with DC-330 and DF-35 connected digitally
HS-Link cable
DO2-HS1 installed in
DI2-HS1
OUTPUTS slot
installed
Power amplifier
Using the HS-Link, it is possible to keep the connection of DP-85 → DC-330 → DF-35
entirely in the digital domain until directly before the power amplifier. The various components
are connected with HS-Link cable.
HS-Link cable
For 5-way
configuration
and higher:
additional
DF-35
Sound field compensation with DG-28 connected to DC-101
HS-Link cable
Coaxial digital
cable
DI2-HS1 installed
Analog outputs
DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)
Analog output
(2-way configuration)
Analog preamplifier
Power amplifier
Power amplifier
DP-85 Block Diagram
New Generation Digital Interface
HS-Link: High Speed Link
HS-Link is an ultra high-quality digital audio interface developed
by Accuphase using latest digital signal transmission technology .
It supports send/receive verification for copyright protection. The
L VDS (Low V oltage Diff erential Signaling) principle allows a single
dedicated HS-Link cable to transmit signals using advanced
formats such as 2.8224 MHz/1 bit or 192 kHz/24 bits. Conv entional
digital formats are also supported. Because digital audio data
are transmitted with utmost fidelity , the sound quality achieved b y
HS-Link is simply outstanding.
TIA/EIA-644
LVDS
HS-Link
Encoder
Security
Control
Driver/Receiver
RJ-45
Connector
RJ-45
Connector
TIA/EIA-644
LVDS
Driver/Receiver
TIA/EIA-568A CAT.5
STRAIGHT CABLE
HS-Link
Decoder
Security
Control
Digital
Audio
Signal
Digital
Audio
Signal
HS-Link Block Diagram
V C O
DAI input signal
Preamble
detector
Phase
comparator
Frequency
divider
Preamble signal
(pulse distortion removed)
Loop filter
Master clock
output
[
Digital Processor Section] Features and Functions
n Supports new generation formats with high sampling rates such as 2.8224 MHz/1 bit and
192 kHz/24 bits
n MDS type D/A converter achieves stunning performance and sound quality
n D/A converter with printed circuit boards made from Teflon (glass fluorocarbon resin) with low dielectric
constant and low loss (✽ Teflon is a registered trademark of DuPont USA.)
n Ultra jitter-free PLL circuit topology
n Fully separate processor section with coaxial and optical digital inputs
n Ultra high-speed digital coupler ensures effective separation between digital and analog sections
n Digital level control with an adjustment range of 0 dB to –60 dB
n Balanced and unbalanced analog outputs
Further Improved MDS Type D/A Converter
MDS (Multiple Delta Sigma) is a revolutionary design
which employs several delta sigma type con verters
in a parallel configuration.
In the combined output of
these multiple converters,
conversion errors cancel
each other out, resulting in
a drastic improvement in
all relevant aspects of
converter performance: accuracy, S/N ratio, dynamic
range, linearity , THD, etc.
For the DP-85, this principle has been further refined
by enhancing the current-to-voltage converter in the
signal adder section for even better stability and topnotch performance.
The DP-85 uses six delta sigma converters in
parallel, which results in an overall performance
improvement by a factor of 2.45 (= √6).
Signal
Conversion error
S
1
e
1
S
2
e
2
Sn-
1
en-
1
S
n
Note the ratio between signal and
e
n
conversion error. In the MDS output,
the error is very small in relation to the
signal.
MDS output
0
(Signal)
S
0
e
(Conversion
error)
Digital input
DAC
#1
#2
#n-1
#n
MDS type D/A converter principle Principle of ultra jitter-free PLL circuit
Ultra Jitter-Free PLL Circuit
For the purpose of synchronizing operation of
the D/A converter with the digital audio interface
(DAI), a phase-locked loop (PLL) circuit is used
which generates a master clock to be used as
system reference. As shown in the diagram, the
Ultra Jitter-Free PLL Circuit of the DP-85
consists of a preamble detector and a voltagecontrolled oscillator (VCO) using a quartz
crystal element. The master cloc k produced by
this PLL circuit is totally free from the effects of
pulse distortion and jitter.
n Assembly with HS-Link
encoder, master clock
generator, DAI encoder/
decoder, ultra jitterfree PLL circuit,
and other
digital signal
processing
circuits
n MDS D/A converter and analog outputs
assembly (with two Teflon PCBs for left
& right channels, featuring low dielectric
constant and low loss)
n Supplied remote commander RC-28
Functions include input switching,
output level adjustment, direct play,
repeat, program, shuffle, etc.
Option Boards
Connection example for sound field compensation using DG-28 together with DP-85
A total of four option board slots are provided on the rear panel (three for input/
output boards and one for EXT DSP). This makes it possible to utilize the highquality digital processor to reproduce the signal from other digital components as
well. A wide variety of boards are av ailable to suit the requirements of an y system.
m Install HS-Link Input Board for
connection to DP-100
m Use EXT DSP option board slot for
connection to Digital Voicing Equalizer
Display example with HS-Link connection
DG-28
✽ For copyright reasons, the SACD signal from
the DP-85 or a SACD/CD signal supplied
via HS-Link does not appear at any other
output (except HS-Link) and can therefore
not be recorded digitally.
✽ Any option board can be installed in any slot.
✽ For details on board installation and usage,
please refer to the instruction manual of the
DP-85.
✽ The input
connectors on
each board
serve as digital
input to the
processor
section.
HPC Coaxial (BNC) Input Board DI-BNC1
Digital Input/Output Board DIO-OC1
HPC Coaxial (ST) Input Board DIO-ST1
AES/EBU Input/Output Board DIO-PRO1
HS-Link Input Board DI2-HS1
n Front panel
The DG-28 can handle 48-kHz/24-bit signals and perform equalization up to a
threshold of 24 kHz. For high sampling frequency signals e xceeding 48 kHz such
as from SACD , the "Wide Range Digital Input/Output Board for DG-28 Connection"
DIO2-DG1 or "Wide Range Analog Input/Output Board for DG-28" AIO-DGU1 or
AIO-DGB1 are used.
Digital connection example
Coaxial digital
cable
Analog outputs
DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)
Analog connection example
m "Wide Range Digital Input/Output Board for DG-28 Connection" installed in option board slot of DG-28
Example 1: DG-28 connected to TAPE jacks of preamplifier or integrated amplifier
Example 2: DG-28 connected between preamplifier and power amplifier
Preamplifier
Unbalanced connection: AIO-DGU1
Balanced connection: AIO-DGB1
Preamplifier
◆ For DG-28
Wide Range Digital Input/
Output Board
n For digital connection
DIO2-DG1
n For analog connection
m Unbalanced connection
AIO-DGU1
m Balanced connection
AIO-DGB1
(Uses 4 slots)
Power amplifier
Guaranteed Specifications
[Guaranteed specifications measured according to EIAJ standard CP-2402]
[Measurement disc: PHILIPS 3122-783-00632]
[Transport Section]
m Compatible disc formats 2-channel Super Audio CD, CD
m Data read principle Non-contact optical pickup
m Laser diode wavelength SACD : 650 nm
m Digital outputs HS-Link Connector type : RJ-45
[Digital Processor Section]
m Digital inputs COAXIAL Format : EIAJ CP-1201/AES-3 compliant
n Rear panel
Option board expansion slot
EXT DSP (for DG-28 connection) option board slot
m D/A converter 24-bit MDS converter
m Frequency response 0.5 - 50,000 Hz +0, –3 dB
m Total harmonic distortion 0.0008% (20 to 20,000 Hz)
m Signal-to-noise ratio 116 dB
m Dynamic range 112 dB (24-bit input, low-pass filter off)
m Channel separation 108 dB (20 to 20,000 Hz)
m Output voltage and impedance BALANCED : 2.5 V at 50 ohms, balanced XLR type
m Output level control 0 to –60 dB in 1-dB steps (digital)
★
1 Track/inde x indicator
2 Time indicator
3 Output level indicator
4 Disc tray open/close button
5 Play button
6 Pause button
7 Stop button
8 SACD/CD selector button
9 Power switch
Remarks
★
This product is available in versions f or 120/230 V A C . Make sure that the voltage shown on the rear panel matches
the AC line voltage in your area.
★
The shape of the AC inlet and plug of the supplied power cord depend on the voltage rating and destination country .
Supplied accessories: m AC power cord
J Disc tray
K Track search knob
L Input selector
(PUSH: external digital component on/off)
M Analog output connectors (unbalanced/balanced)
N Digital input connectors (coaxial, optical)
O Transport output connectors (HS-Link, coaxial)
P AC inlet
m Remote commander RC-28
m Audio cable with plugs SL-10G
★
[General]
m Power requirements A C120 V/230 V (Voltage as indicated on rear panel) 50/60 Hz
m Power consumption 25 W
m Maximum dimensions Width 475 mm (18-11/16") x Height 150 mm (5-7/8") x
m Weight 19.2 kg (42.3 lbs) net, 25.0 kg (55.0 lbs) in shipping carton
CD : 780 nm
Suitable cable : Dedicated HS-Link cable
COAXIAL Format : EIAJ CP-1201
OPTICAL Format : EIAJ CP-1201 compliant
Sampling frequencies
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
(16 to 24 bits, 2-channel PCM)
Implemented by option board:
176.4 kHz, 192 kHz (24 bits, 2-channel PCM)
2.8224 MHz (1 bit 2-channel DSD)
UNBALANCED : 2.5 V at 50 ohms, RCA phono jack
Depth 397 mm (15-5/8")
Optional Cables
m HS-Link cable HDL-15 (1.5 m)
m Toslink optical fiber cable LG-10 (1 m)
m HPC balanced cables HLC-10 (1 m)
m HPC optical fiber cable (ST) HLG-10 (1 m)
✽ HDL-15 also available in 3 m, 5 m, 7.5 m, and 10 m lengths.
✽ LG-10, HLC-10, HLG-10 also available in 2 m, 3 m, 5 m lengths.
m Specifications and design subject to change without notice for improvements.
http:/www.accuphase.com/
PRINTED IN JAPAN G015Y 851-0120-00 (AD1)
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