dCS Scarlatti DAC
User Manual
Software Issue 1.2x
August 2011
Flename: Scarlatti DAC Manual v1_2x.docx
Page 10
English
version
STEP 4 – Choosing a Sync Mode
So far, the system has been set up to lock to the clock generated by the source. If you are using the
1394 or SDIF interfaces, the DAC will lock to a word clock generated by the source. This is the
simplest arrangement, but it does not give the best sonic performance due to clock jitter.
If your source equipment has a word clock input, you may be able to reduce the jitter in your system
by either setting the DAC to Master Mode or locking the system to a Master Clock. If not, you can miss
out this section.
Using the DAC in Master Mode
!
You can use Master Mode ONLY if your source equipment can lock to a 44.1kHz word
clock and the DAC is receiving data at 44.1, 88.2 or 176.4kS/s or DSD. If the system is
not set up correctly and fails to lock, you will hear clicks / noises from the speakers and
the signal may be distorted.
Connect the equipment as shown, taking special care to connect the clock cable correctly.
ANALOGUE OUTPUTS
LEFT
RIGHT
RIGHT
LEFT
AES 1
AES 2
RCA 1
RCA 2
SPDIF
DIGITAL INPUTS
TOSLINK
CH 1
CH 2
BNC
IN
OUT
DSD/SDIF
WCLK
1394
SUC
50/60 Hz, 50W
FUSE
T 500mA L
~
Scarlatti Transport
Scarlatti DAC
L
L
R
R
Balanced - or - Unbalanced
Analogue Outputs
To pre- or power amplifier inputs
DIGITAL
OUTPUTS
AES 1
RCA
BNC
TOSLINK
CH1
CH2
SUC
1394
IN ---- WORDCLOCK --- OUT
SDIF
AES 2
Figure 2 – Using the
Scarlatti
Transport with the DAC in Master Mode
•
Connect
the
DAC’s
Word Clock Out
connector to the word clock input on the source equipment.
dCS
transports slave automatically.
•
Press
the
Sync
button to set the DAC to
Master
mode and allow the system to re-lock.
