Eclipse User Manual
Release 4.0.1
Page 9 of 66
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 con-
nectors or balanced XLR connectors. Pin #1 is ground, pin #2 is posi-
tive 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 pin #1 and/or pin #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 input 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 applies 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), set
SETUP
DIG-IN (CLOCK)
to
DigIn
as well. The XLR output is al-
ways active, but the
format
of the data being sent out can either be
Pro
(professional)
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 recommend the use of purpose-manufactured Digital Audio cables, which have low capacitance and con-
trolled impedance for carrying AES/EBU signals. Ordinary microphone cables will usually work at 48kHz,
but may reduce range and add jitter and distortion to the signal. It is unlikely that microphone cable will
prove satisfactory for 96kHz operation.
see page 24
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Summary of Contents for Eclipse
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