Eclipse User Manual
Release 1.10.1 Page 7 of 58 Eclipse User Manual
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The Back Panel
A) AC Port Connect an IEC standard 3-prong AC power cord here. The center post is chassis ground.
B) Analog Audio Inputs
The Eclipse’s analog inputs accept either unbalanced 1/4-inch connec-
tors or balanced XLR connectors. Pin #1 is ground, pin #2 is positive
phase (hot), and pin #3 is negative phase (cold). To “unbalance” the
XLR jack, use both pins #1 and #3 as ground and use pin #2 as
“hot.” If either pins #1 or #3 are unconnected, you will get more noise and hum
than signal! You can connect a guitar to the 1/4-inch inputs, but the in-
put level will need to be boosted (
LEVELS {IN GAIN}).
C) XLR Analog Audio Outputs
These analog outputs accept balanced XLR connectors. The same pin
layout and “ungrounding” procedure described above apply here as
well.
D) 1/4-inch Analog Audio Outputs
These analog outputs accept balanced 1/4-inch connectors. The sleeve
is ground, the ring is negative phase (cold), and the tip is positive phase
(hot). Using an unbalanced 1/4-inch connector will reduce the output
by 6dB.
E) XLR Digital Interface
Use these connectors to connect professional digital audio gear to the Eclipse. These cables
are differential with a shielded twisted pair. To select the XLR input as the digital source, go
to
SETUP DIG-IN (DIG-IN). If you want to synchronize the Eclipse to this digital input
(you usually will), you will want to set SETUP DIG-IN (CLOCK) to DigIn as well. The XLR
output is always active, but the format of the data being sent out it can either be Pro or Cns
(consumer) as determined by SETUP DIG-OUT FORMAT (CS-TYPE). You will probably want
this set to Pro if you’re using the XLR output as your main (or only) digital output. We recom-
mend the use of purpose-manufactured Digital Audio cables, which have low capacitance and controlled impedance for carrying
AES/EBU signals. Ordinary microphone cables will usually work at 48kHz, but may reduce range and add jitter and distor-
tion to the signal. It is unlikely that microphone cable will prove satisfactory for 96kHz operation.
! see page 22
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