m Totally separate SCAD/CD transport and processor sections m Singlelens/twin pickup high-speed access mechanism m Digital processor
ready for new-generation source formats m MDS type D/A converterwith 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. Transport section with dedicated DSP for digital servo control and single lens/twinpickup high-speed access mechanism. Entirely separate construction of transport andprocessor 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 player
combo DP-100 and DC-101, Accuphasedeveloped the DP-85 using the latest advancesin 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 soundquality is sure to capture the heart of anyaudiophile.
The transport section of the DP-85 features adedicated DSP for the digital servo circuitry anda 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 selecteddelta sigma units in a parallel configuration,
assuring unprecedented conversion precision.

[SACD/CD Transport Section] Features and Functionsn Digital servo with dedicated DSP assures highly accurate signal pickup for SACD and CD
n Plays also regular CDs with impressive qualityn Single lens/twin pickup mechanism minimizes access time and SACD/CD switching timen Compatible with super high quality digital audio interface HS-Link
developed by Accuphase; one RJ-45 HS-Link output connector built inn Dedicated coaxial connector for CD signal output
n Text data display shows disc and title name, artist name, and other
Assembly with transport outputs (HS-Link,informationcoaxial) and digital inputs (optical, coaxial)
n Strong chassis with resonance and vibration resistant constructionn "High Carbon" cast iron insulator feet with superior damping characteristics further enhance sound qualityn 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 digitaldomain can be constructed.

Although housed in one enclosure, the SACD/
CD transport section and the processor sectionof the DP-85 can be used entirely independentof each other, thanks to the HS-Link and coaxial
outputs and the digital inputs. Slots for option
boards are provided as well, resulting inunsurpassed 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 allabout.

Sound field compensation with DG-28 connected to DC-330

Sound field compensation with DG-28 connected to DC-101

HS-Link cable

HS-Link cable
Coaxial digitalcable

Coaxial digital
cable

Analog outputs
DI2-HS1
installed

Analog outputs
Power amplifier

DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)

Analog preamplifier

DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)

Multi-amplified system with DC-330 and DF-35 connected digitally
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

Power amplifier

HS-Link cableDI2-HS1
installed

DO2-HS1 installed inOUTPUTS slot

Analog output(2-way configuration)

For 5-wayconfigurationand higher:
additional
DF-35

Power amplifierDI2-HS1 installed

New Generation Digital Interface
HS-Link: High Speed Link
HS-Link is an ultra high-quality digital audio interface developedby Accuphase using latest digital signal transmission technology.
It supports send/receive verification for copyright protection. TheLVDS (Low Voltage Differential 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. Conventional
digital formats are also supported. Because digital audio data
are transmitted with utmost fidelity, the sound quality achieved by
HS-Link is simply outstanding.

DigitalAudio
SignalHS-Link
Encoder

TIA/EIA-644
LVDS
Driver/Receiver

RJ-45
Connector
Security
Control

TIA/EIA-568A CAT.5
STRAIGHT CABLE

HS-Link
Decoder
RJ-45
Connector
Security
Control

HS-Link Block Diagram
DP-85 Block Diagram

TIA/EIA-644
LVDS
Driver/Receiver

DigitalAudioSignal

[Digital Processor Section] Features and Functionsn Supports new generation formats with high sampling rates such as 2.8224 MHz/1 bit and192 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 sectionsn Digital level control with an adjustment range of 0 dB to –60 dB
n Balanced and unbalanced analog outputs

Ultra Jitter-Free PLL Circuit
For the purpose of synchronizing operation ofthe D/A converter with the digital audio interface(DAI), a phase-locked loop (PLL) circuit is usedwhich generates a master clock to be used assystem reference. As shown in the diagram, theUltra Jitter-Free PLL Circuit of the DP-85
consists of a preamble detector and a voltagecontrolled oscillator (VCO) using a quartz

Further Improved MDS Type D/A Converter
MDS (Multiple Delta Sigma) is a revolutionary design
which employs several delta sigma type converters
in a parallel configuration.
In the combined output ofthese multiple converters,conversion errors cancel
each other out, resulting ina drastic improvement in
all relevant aspects of
converter performance: accuracy, S/N ratio, dynamicrange, linearity, THD, etc.
For the DP-85, this principle has been further refinedby enhancing the current-to-voltage converter in thesignal adder section for even better stability and topnotch performance.

crystal element. The master clock produced byThe DP-85 uses six delta sigma converters inparallel, which results in an overall performance
improvement by a factor of 2.45 (= √6).

pulse distortion and jitter.
DAI input signal

SignalDAC#1this PLL circuit is totally free from the effects ofn Supplied remote commander RC-28
Functions include input switching,output level adjustment, direct play,repeat, program, shuffle, etc.

Preamble signal(pulse distortion removed)

e1

Digital input

S2
#2

Phase
comparator

S0 (Signal)
e2

Sn-1

e0(Conversionerror)

#n-1
en-1
#nSn
en

Frequency
divider

Loop filter

VCO

MDS output
Note the ratio between signal andconversion error. In the MDS output,
the error is very small in relation to thesignal.

MDS type D/A converter principle

Master clock
outputPrinciple of ultra jitter-free PLL circuit

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 Assembly with HS-Link
encoder, master clock
generator, DAI encoder/decoder, ultra jitterfree PLL circuit,andotherdigital signal
processingcircuits

Preamble
detector

Conversion error
S1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 aswell. A wide variety of boards are available to suit the requirements of any system.

The DG-28 can handle 48-kHz/24-bit signals and perform equalization up to athreshold of 24 kHz. For high sampling frequency signals exceeding 48 kHz suchas 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 orAIO-DGB1 are used.

m Install HS-Link Input Board forconnection to DP-100
m Use EXT DSP option board slot forconnection to Digital Voicing Equalizer
DG-28

Digital connection example

Display example with HS-Link connectionn For digital connection
DIO2-DG1

Coaxial digital
cable✽ For copyright reasons, the SACD signal fromthe 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.

n For analog connectionm Unbalanced connection
AIO-DGU1
Analog outputs

Preamplifier

DIO2-DG1 installed in
EXT DSP slot (uses 2 slots)✽ Any option board can be installed in any slot.
✽ For details on board installation and usage,
please refer to the instruction manual of theDP-85.
✽ The
input
connectors on
eachboardserve as digital
input to theprocessorsection.

◆ For DG-28
Wide Range Digital Input/Output Board

m Balanced connectionAIO-DGB1

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

HPC Coaxial (BNC) Input Board
Digital Input/Output Board
HPC Coaxial (ST) Input Board
AES/EBU Input/Output Board
HS-Link Input Board

Unbalanced connection: AIO-DGU1
Balanced connection: AIO-DGB1

DI-BNC1
DIO-OC1
DIO-ST1
DIO-PRO1
DI2-HS1(Uses 4 slots)

Preamplifiern Front panel

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
m Data read principlem Laser diode wavelength2-channel Super Audio CD, CD
Non-contact optical pickup
SACD:
650 nmCD:
780 nmHS-Link Connector type :RJ-45
Suitable cable :Dedicated HS-Link cable
COAXIAL Format:
EIAJ CP-1201

m Digital outputs[Digital Processor Section]m Digital inputs

n Rear panel
Option board expansion slot
EXT DSP (for DG-28 connection) option board slot
m D/A converterm Frequency responsem Total harmonic distortionm Signal-to-noise ratiom Dynamic range
m Channel separationm Output voltage and impedancem Output level control★

1 Track/index 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

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 ★

[General]m Power requirementsm Power consumption
m Maximum dimensions
m WeightRemarks★ This product is available in versions for 120/230 V AC. 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:

COAXIAL Format:
EIAJ CP-1201/AES-3 compliant
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)
24-bit MDS converter
0.5 - 50,000 Hz +0, –3 dB
0.0008% (20 to 20,000 Hz)
116 dB112 dB (24-bit input, low-pass filter off)
108 dB (20 to 20,000 Hz)
BALANCED:
2.5 V at 50 ohms, balanced XLR type
UNBALANCED :2.5 V at 50 ohms, RCA phono jack
0 to –60 dB in 1-dB steps (digital)

AC120 V/230 V (Voltage as indicated on rear panel) 50/60 Hz25 W
Width 475 mm (18-11/16") x Height 150 mm (5-7/8") x
Depth 397 mm (15-5/8")
19.2 kg (42.3 lbs) net, 25.0 kg (55.0 lbs) in shipping carton

Optional Cables
m HS-Link cablem Toslink optical fiber cablem HPC balanced cables
m HPC optical fiber cable (ST)HDL-15 (1.5 m)
LG-10 (1 m)
HLC-10 (1 m)
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 AC power cordm Remote commander RC-28
m Audio cable with plugs SL-10G

m Specifications and design subject to change without notice for improvements.
http:/www.accuphase.com/

PRINTED IN JAPAN G015Y 851-0120-00 (AD1)