CH Precision D1 SACD/CD Manuel utilisateur
D1 SACD/CD unit
User Manual
Dear Client,
We are honored that you have chosen the CH D1 SACD/CD unit. Our team has put all his e orts into designing and manu acturing
this outstanding product and is proud to present it to you. We hope your D1 will bring you uncountable hours o musical emotion
rom your SACD and CD collection.
But be ore starting your musical journey, we kindly ask you to pay attention to the in ormation contained in this manual. The D1,
as you will discover in the ollowing pages, is a Swiss precision product designed or ultimate per ormance and lexibility. However,
reaching sonic excellence requires your unit to be setup and operated correctly and this what this manual is all about. I you have
any questions or require assistance, please don't hesitate to contact your authorized dealer.
We hope you will enjoy your D1 SACD/CD unit or many years.
The Concert has just begun...
Cossy F.
Heeb T.
Table o contents
1 Technical highlights.............................................................................................................................................................. 7
1.1 SACD/CD drive (VMK-5).............................................................................................................................................. 8
1.2 Mechanical construction............................................................................................................................................... 8
1.3 Modular architecture and slot-in boards........................................................................................................................ 8
1.3.1 Multi-channel support......................................................................................................................................... 9
1.3.2 Digital outputs and CH Link: DIGITAL_OUT board................................................................................................ 10
1.3.3 Stereo analog outputs: ANALOG_OUT board option.............................................................................................10
1.3.4 Monaural analog outputs: Mono ANALOG_OUT board option...............................................................................10
1.3.5 External clock synchronization: SYNC_IO board option........................................................................................ 10
1.4 Power supply............................................................................................................................................................ 11
1.4.1 Optional external power supply......................................................................................................................... 11
2 Be ore use......................................................................................................................................................................... 12
2.1 Package content........................................................................................................................................................ 12
2.2 Sa ety notice............................................................................................................................................................. 12
2.3 User manual............................................................................................................................................................. 13
2.4 Mains supply............................................................................................................................................................. 13
2.5 Transport and packaging............................................................................................................................................ 13
2.6 Cleaning................................................................................................................................................................... 14
2.7 Maintenance and service............................................................................................................................................ 14
3 Installation........................................................................................................................................................................ 15
3.1 Unpacking................................................................................................................................................................ 15
3.1.1 Removing the security screw.............................................................................................................................. 15
3.2 Unit positioning......................................................................................................................................................... 15
3.3 Connections............................................................................................................................................................... 17
3.3.1 CONTROL board................................................................................................................................................ 18
3.3.1.1 USB port.................................................................................................................................................. 19
3.3.1.2 Ethernet port........................................................................................................................................... 19
3.3.2 DIGITAL_OUT boards........................................................................................................................................ 19
3.3.2.1 Standard digital outputs........................................................................................................................... 20
3.3.2.2 CH Link digital audio inter ace.................................................................................................................. 20
3.3.3 Stereo ANALOG_OUT boards............................................................................................................................. 20
3.3.4 Monaural main ANALOG_OUT boards................................................................................................................ 20
3.3.5 SYNC_IO board................................................................................................................................................ 21
3.3.5.1 BNC clock input........................................................................................................................................ 21
3.3.5.2 BNC clock outputs..................................................................................................................................... 21
3.3.6 Power cord receptacle and voltage selection....................................................................................................... 22
3.3.7 External power supply connector....................................................................................................................... 22
4 Operation.......................................................................................................................................................................... 23
4.1 Front panel controls................................................................................................................................................... 23
4.1.1 Front panel...................................................................................................................................................... 23
4.1.2 User control knob............................................................................................................................................. 23
4.2 Operating modes....................................................................................................................................................... 24
4.2.1 Normal mode................................................................................................................................................... 25
4.2.2 Shortcuts.......................................................................................................................................................... 26
4.2.3 Menu mode...................................................................................................................................................... 28
Rev 3.0 D1 User Manual 5
4.3 Con iguration............................................................................................................................................................ 31
4.3.1 D1 con iguration menu items............................................................................................................................ 32
4.3.1.1 AUDIO SETTINGS...................................................................................................................................... 32
4.3.1.2 DISPLAY SETTINGS.................................................................................................................................... 34
4.3.1.3 SHORTCUTS.............................................................................................................................................. 36
4.3.1.4 FACTORY SETTINGS................................................................................................................................... 37
4.3.1.5 INSTALLED OPTIONS................................................................................................................................. 38
4.3.1.6 NETWORK................................................................................................................................................ 38
4.4 Remote control.......................................................................................................................................................... 39
4.4.1 Remote control operation.................................................................................................................................. 39
4.4.2 Changing the remote control batteries................................................................................................................ 40
4.5 Advanced clocking..................................................................................................................................................... 41
4.5.1 General clocking considerations......................................................................................................................... 41
4.5.2 Without SYNC_IO board.................................................................................................................................... 41
4.5.3 D1 SACD/CD drive (with SYNC_IO board) + C1 D/A controller (with SYNC_IO board)..........................................42
4.5.4 Multichannel D1 drive + 3x C1 D/A controllers (all with SYNC_IO board)............................................................43
4.5.5 D1 (with SYNC_IO board) + C1 (with SYNC_IO board) + T1 time re erence.........................................................45
4.6 Returning to actory de aults...................................................................................................................................... 46
5 Firmware update............................................................................................................................................................... 47
5.1 Preparing the USB stick............................................................................................................................................. 47
5.2 Updating the unit's irmware..................................................................................................................................... 47
5.3 Emergency irmware update procedure....................................................................................................................... 48
6 Troubleshooting................................................................................................................................................................. 49
7 Speci ications..................................................................................................................................................................... 50
6 D1 User Manual Rev 3.0
1 Technical highlights
CH products are proudly designed and manu actured in Switzerland by CH Precision Sàrl. Our engineers have put all their know-
how into bringing you the D1, a highest quality modular SACD/CD unit based on slot-in boards and USB lash-drive irmware
update. In its base version the D1 is a pure digital two channel SACD/CD drive to be used with a high quality external Digital to
Analog Converter (DAC). It includes a DIGITAL_OUT board and a CONTROL board. Highest quality playback is ensured when the D1
is paired to the matching CH C1 Digital to Analog Controller using the proprietary high de inition CH Link inter ace.
Optional boards allow to extend the unctionality o the base version o the D1 SACD/CD drive. By adding two monaural
ANALOG_OUT boards or a stereo ANALOG_OUT board the D1 becomes an integrated stereo SACD/CD player. Seamless migration
to multi-channel is achieved by adding urther output boards or the additional surround channels. Up to our output boards can be
placed in the D1. Any combination o stereo (L/R, Ls/Rs or C/Sub) digital (DIGITAL_OUT), main channels monaural (L + R) analog
or stereo (L/R, Ls/Rs or C/Sub) analog (ANALOG_OUT) output boards are allowed. Finally, the SYNC_IO optional board provides
advanced clock synchronization capabilities or use with external clock generators or to enslave the D1 to the C1's master clock or
zero-jitter connection.
D1 main components
(1) External power supply input. For X1 optional external power supply only
(2) Mains switch and power cord receptacle (on back panel)
(3) Adjustment sha ts and screws
(4) Power supply section
Rev 3.0 D1 User Manual 7
(2)
(1)
(3)
(4)
(5)
(6)
(7)
(3)
(8)
(9)
(10)
(3)
(11)
(13)
(3)
(14)
(12)
(5) Main power trans ormer
(6) Standby power trans ormer (ensures green mode Standby)
(7) Esoteric VMK-5 SACD/CD drive mounted on steel support
(8) SACD/CD drawer and AMOLED display (on ront panel)
(9) Audio, clock, USB ( irmware update) and RJ-45 (control) connectors ( rom slot-in boards). Analog ground to Earth jumper
(10) Slot-in boards (SYNC_IO, CONTROL, DIGITAL_OUT, stereo ANALOG_OUT or monaural ANALOG_OUT)
(11) Main board
(12) Power supply regulation board
(13) SACD/CD mechanism control section
(14) Concentric push control knob
1.1 SACD/CD drive (VMK-5
The D1 SACD/CD unit is built around the high-quality Esoteric VMK-5 SACD/CD mechanism eaturing VRDS-Neo disc clamping. The
VRDS disc clamp covers the whole disc (not only its central part) ensuring vibration and error ree digital data reading. CH has
urther improved the vibration immunity o the SACD/CD mechanism by mounting it on a heavy steel rails directly assembled to a
massive steel base plate weighting over 15kg.
1.2 Mechanical construction
The D1 SACD/CD unit is assembled rom high-quality aluminum and steel elements with no visible screws on the ront, top and side
panels. The base o the unit is made o a heavy steel plate whereas the ront panel, the side panels and the top cover are
machined rom aluminum. The power supply is isolated rom the audio section in its own compartment to avoid any contamination
o the audio circuits by noise radiated rom the supply. Pin assembly o all chassis elements provides smooth joints between
elements while screws every 6cm ensures protection against electromagnetic inter erences. First class mechanical and chemical
sur ace treatments provide the luxury inish o the D1.
Four steel eet support the unit. Each eet ends with a elastomer ring to sit on delicate sur aces but is also equipped with a height
adjustable steel spike to ine tune unit positioning. Horizontal adjustment is done with the provided screwdriver through the our
adjustment sha ts accessible rom the top o the unit. In addition to providing convenient horizontal adjustment rom the top o the
unit, the sha ts also serve as vibration evacuation channels or any stacked unit. Special sha t covers are provided to inter ace with
the spikes o the stacked unit. Any vibration rom the upper unit is transmitted by the sha t cover to the sha t and rom the sha t to
the lower unit eet or spike, orming a privileged path or vibrations evacuation.
1.3 Modular architecture and slot-in boards
The D1 bene its rom a ully modular architecture. It eatures separated sections or power-supply, disc mechanism and related
control, ront panel, central host processor and slot-in boards. This modular architecture combined to the USB plug or all irmwares
(MCU, DSP, and FPGA) update allows or easy servicing and upgrade should one section become aulty or obsolete.
The slot-in boards section consists in a vertically mounted mother board with optional boards plugged into it. Optional boards
provide audio unctionality and connectivity to other equipment. There are ive types o slot-in boards:
•CONTROL board: provides a USB port or so tware upgrade and an Ethernet port or command
8 D1 User Manual Rev 3.0
•DIGITAL_OUT: provides two channels o digital audio output. Speci ic back panels or L/R, Ls/Rs or C/Sub channels
•Stereo ANALOG_OUT: provides two channels o analog audio output. Speci ic back panels or L/R, Ls/Rs or C/Sub
channels
•Monaural ANALOG_OUT: provides one ully balanced channel o analog audio output. Speci ic back panels or Le t or
Right channel
•SYNC_IO: provides advanced clock synchronization options (1 clock in, 2 clock out)
There are 6 slots in the D1. A CONTROL board is always installed inside the D1, leaving space or 5 optional boards. One o these
slots is reserved or the SYNC_IO board. Note that optional boards MUST be installed by a quali ied technician. Failure to do so will
void any warranty. Following table shows the typical recommended con igurations or D1:
Con iguration
DIGITAL_OUT L/R
DIGITAL_OUT Ls/Rs
DIGITAL_OUT C/Sub
Mono ANALOG_OUT L
Mono ANALOG_OUT R
ANALOG_OUT L/R
ANALOG_OUT Ls/Rs
ANALOG_OUT C/Sub
Description
SD 9Stereo SACD/CD drive (Base con iguration). To be used with 1 external stereo DAC.
SP 9Stereo SACD/CD player.
DMP 9 9 Dual-Mono SACD/CD player.
MD 9 9 9 Multi-channel SACD/CD drive. To be used with 3 external stereo DACs.
MP 9 9 9 Multi-channel SACD/CD player.
DM-MP 9 9 9 9 Dual-Mono ( or L+R) Multi-channel SACD/CD player.
MH 9 9 9 Multi-channel SACD/CD hybrid drive/player. To be used with 1 external DAC.
D1 recommended configurations (CONTROL board is included in all configurations and SYNC_IO board can be
added in any configuration
1.3.1 Multi-channel support
True multi-channel SACD playback is achieved by means o optional boards. The Stereo versions o D1 are delivered with a single
DIGITAL_OUT board and/or a single ANALOG_OUT board con igured or L/R channels. They can be extended to multi-channel by
simple addition o DIGITAL_OUT or ANALOG_OUT boards or the Ls/Rs and C/Sub channels. No other action is required as the D1
irmware will automatically sense the presence o the additional boards and enable true multi-channel reproduction.
When a D1 has multi-channel capability (either digital, analog or hybrid outputs), it will always select multi-channel DSD layer on
SACDs whenever available. User can then manually change to another available layer (stereo DSD and/or CD layer) rom a given
disc.
Rev 3.0 D1 User Manual 9
When a D1 is purely stereo (either drive or player), it will irst select stereo DSD layer on SACDs whenever available. User can then
manually change to another available layer rom a given disc, including a down-mixed version o the multichannel DSD layer i
this layer exists.
Four channel con igurations are not supported. Multiple output boards o the same type (DIGITAL_OUT or ANALOG_OUT) on any
channel pair (L/R, Ls/Rs or C/Sub) are not supported.
1.3.2 Digital outputs and CH Link: DIGITAL_OUT board
The DIGITAL_OUT board provides digital output or an audio channel pair. Three di erent DIGITAL_OUT boards are available,
corresponding to L/R, Ls/Rs and C/Sub channel pairs. Each DIGITAL_OUT board provides standard digital outputs in AES-EBU,
Coaxial RCA (S/PDIF) and Optical TOSLINK (S/PDIF) ormats as well as in the CH Link high-de inition proprietary ormat. CH Link
uses a dedicated connector to carry high resolution audio and control data over a single link between CH units. It supports both
PCM (up to 768kHz, 32bits) and DSD. To comply with high de inition digital content protection, DSD signals are cyphered when
transported over CH Link rom the D1. Standard digital outputs down-convert DSD signals to 16bits/44.1kHz PCM audio.
1.3.3 Stereo analog outputs: ANALOG_OUT board option
The ANALOG_OUT board provides analog line level output or two audio channels. Three di erent ANALOG_OUT boards are
available, corresponding to L/R, Ls/Rs and C/Sub channel pairs. Each ANALOG_OUT board provides both balanced (on XLR
connectors) and single-ended (on RCA connectors) outputs. Digital to analog conversion is handled by two WM8742 DACs (one per
channel) combined with a discrete dual mono output stage. A choice o digital ilters is available to the user. Filters or PCM and
DSD audio can be selected independently.
1.3.4 Monaural analog outputs: Mono ANALOG_OUT board option
The monaural ANALOG_OUT board pair provides analog line level output or the two main audio channels (Le t and Right). Each
monaural ANALOG_OUT board provides both true balanced (on XLR connectors, with a dedicated analog output stage on each –
warm and cold – point) and single-ended (on RCA connectors) outputs. Each board (i.e. each channel) has its own dedicated
voltage regulators. Digital to analog conversion is handled by one WM8742 DAC on each board combined with a discrete dual
mono output stage. A choice o digital ilters is available to the user. Filters or PCM and DSD audio can be selected independently.
1.3.5 External clock synchronization: SYNC_IO board option
The SYNC_IO board provides advanced clock synchronization options or D1 when used with an external clock generator such as
the CH Precision T1 10MHz time re erence or matching CH DAC (C1). It includes a clock input on BNC connector with selectable 75
Ohm or high input impedance. Supported input requencies on this connector are all standard audio Wordclocks (44.1, 48, 88.2,
96, 176.4, 196, 352.8 and 384 kHz), audio Masterclocks (22.5792 and 24.576 MHz), DSD bitclock (2.8224 MHz) and atomic-
clock multiples (100 kHz and 10 MHz). When ed with an audio Wordclock, the D1's internal clock will lock its VCXO internal clock
in requency and in phase (phase accuracy o +/- 2.5 us), tracking below 0.1 Hz with 0.1 PPM corrections or optimal jitter
rejection.
Two 75 Ohm Wordclock outputs completes the input/output capabilities o the SYNC_IO board.
When a T1 time re erence clock generator is available, ultimate result is achieved when connecting both the C1 and the D1's clock
input to two di erent clock outputs o the T1, and setting both C1 and D1's clock source to SYNCHRO BNC 75. I no ultra-high
10 D1 User Manual Rev 3.0
Table des matières
