EMM Labs CDSD DISC TRANSPORT - Manual (Page 6)

CDSD User Manual
ALT: This key is used to change default settings of the CDSD. The basic
operation for this is to press and hold the ALT, and then to press a
second key for the appropriate function. Then both keys should be
released at the same time. This process takes about 15 seconds.
During that time the CDSD should be in STOP and not turned off as
the setting is written into internal memory.
Second key functions:
PREVIOUS: sets stereo program selection to stereo
NEXT: sets program selection to multichannel
REPEAT:
This buttons toggles through 3 states: repeat off – repeat track
(repeats current track) – repeat all (repeats entire disc).
PREVIOUS:
Jumps back a track. Hold down for 3 seconds to enter fast rewind
mode (exit mode by pressing PLAY).
NEXT:
Jumps to next track. Hold down for 3 seconds to enter fast forward
mode (exit mode by pressing PLAY).
Basic Operations and Typical Connections
Wired remote control
On the rear panel you can find a DIN 9-pin (RS-232) connector for serial remote control.
See appendix for more details. The USB port is currently only used for servicing.
Two Interface Choices
The CDSD can be connected to the DAC via 2 different digital audio interfaces: EMM
OptiLink and AES/EBU. The latter is muted during SA-CD playback as it cannot transmit
DSD signals which are the SA-CD native signal encoding method. EMM OptiLink,
however, is designed for DSD and PCM signals and works for playback of all discs. For
best performance with EMM Labs converters you should always use the EMM OptiLink
connections with the 3 provided optical ST glass cables.
Clock Master and Clock Slave Modes
The CDSD provides 2 basic ways for how to connect it to an external D/A converter, such
as the EMM Labs DCC2 or DAC6e: clock master or clock slave modes. Master / slave is
in reference to who provides the clock signal to the D/A conversion process and who
receives an external clock as a guide signal to lock to.
In clock master mode the CDSD generates and provides the clock to the D/A conversion
process. Of course, for this the D/A converter has to be configured such that it selects the
external clock input for its timing signal. This mode does not provide the best possible
sonic performance and should only be used with D/A converters that do not provide a
clock output.
In clock slave mode the CDSD receives its clock reference from the D/A converter. An
additional connection between CDSD and D/A converter needs to be provided for this.
For best results the CDSD should always be operated in clock slave mode.
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