Simaudio 750D DAC - Manual (Page 10)

750 D Reference DAC / CD Transport
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10
Rear Panel Connections
Figure 2: MOON 750D Rear panel
The rear panel will look similar to Figure 2 (above).
On the left side are two pairs of analog audio
outputs, labeled “Right” and “Left”, each with a
single-ended RCA and balanced XLR connector.
Don’t hesitate to use good quality interconnect cable
when making the connection between the MOON
750D and your preamplifier or integrated amplifier.
We strongly recommend that you use the balanced
XLR connectors on your 750D to maximize its level
of performance.
The middle section contains two rows of connectors
for digital audio. The top row has four (4) digital
inputs labeled “D1” (AES/EBU), “D2” (S/PDIF), “D3”
(TosLink) and “D4” (USB). The bottom row has two
(2) digital outputs – one each AES/EBU and S/PDIF.
When using either of the S/PDIF digital connections,
you should always use a 75
Ω digital audio cable
terminated with RCA connectors. If you decide to
use the AES/EBU digital output, use a dedicated
AES/EBU 110
Ω digital audio cable terminated with
XLR connectors.
The right side of the rear panel has various
connectors for external communications. The
MOON 750D is equipped with full-function bi-
directional RS-232 port control and status for
custom integration or automation. Immediately to
the right of the RS-232 port are two (2) “SimLink”
connectors labeled “in” and “out” on 1/8” mini jacks.
Please refer to the next section entitled SimLink for
more details.
Your MOON 750D DAC / CD Transport has a 1/8”
mini jack input for use with aftermarket infrared
remote control receivers. The “IR in” connector is
located immediately to the right of the “SimLink”
connectors.
Directly below these communications interfaces,
there are a pair of 4-pin XLR connectors labeled
“External Power Supply” “Input 1” and “Input 2”.
These are reserved for future use when an external
power supply will be made available for the MOON
750D.
Finally on the right side is the “AC Power” section
with a main power switch (“0”=off, “1”=on) and IEC
receptacle for the included AC power cord.
All rear panel connectors have been chosen because
they provide the best possible connections for your
unit. A poor contact will degrade the signal
substantially - and plugs and sockets should all look
clean and free of dirt and corrosion. The easiest way
to clean them is to remove the cables from their
sockets and push them back in again. This
procedure requires that your 750D and the rest of
your components be completely turned off.