Constellation Audio Perseus Phono Preamplifier - Manual (Page 8)

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This unbalanced input is provided as a convenience for use with turntables having only unbalanced
output. Whenever possible, we recommend using XLR connections instead. Connecting to an
unbalanced source is handled in the same way an XLR balanced source.
IMPORTANT NOTE: To preserve true dual-mono operation, the Perseus uses a symmetrical circuit
layout. This configuration requires that the Perseus’s back panel connections be laid out a little
differently from those on most preamps. For example, the left-channel connection for MM is on the
right side of the back panel, and the right-channel connection is on the left side. Connecting the cables
in the usual side-by-side fashion will result in an incorrect installation and the mixing of sounds from
different source devices.
5. XLR output
The inner XLR connections on the rear of the Perseus are outputs. To remove an XLR plug, push on the
tab on the connector body and pull the plug out. Be sure to match the output to the correct channel on
your preamp. As you are looking at the back of the Perseus, the output on the left side is for the right
channel, the output on the right is for the left channel.
6. RCA output
RCA unbalanced outputs are also supplied for preamplifers not equipped with XLR connections. When
connecting to an amplifier, be sure to match the output to the correct channel on your amp. As you are
looking at the back of the Perseus, the output on the left side is for the right channel, and the output
on the right is for the left channel. To remove an RCA plug, grasp it by the connector body and pull the
plug out.