1 Technical highlights
CH products are proudly designed and manufactured 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 flash-drive firmware
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 definition CH Link interface.
Optional boards allow to extend the functionality of the base version of 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 further output boards for the additional surround channels. Up to four output boards can be
placed in the D1. Any combination of 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 for use with external clock generators or to enslave the D1 to the C1's master clock for
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 shafts and screws
(4) Power supply section
Rev 3.0
D1 User Manual
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