Mark Levinson 380 - Rear Panel Connections; Balanced Main Outputs

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PUSH PUSH PUSH PUSH
right balanced
main out
right balanced
input 1
right balanced
input 2
left balanced
main out
left balanced
input 2
left balanced
input 1
right main out left main out
right
input 3
right
input 4
right
input 5
right
input 6
left
input 6
left
input 5
left
input 4
left
input 3
right
rec out 1
right
rec out 2
left
rec out 2
left
rec out 1
slave external master
communication ports
PREAMPLIFIER Nº38
designed and manufactured in U.S.A.
by MADRIGAL S/N
2
1
2
5
7
1 3 4 4
7
6
6 3
PREAMPLIFIER Nº380
Rear Panel
Note: All left-channel inputs and outputs are on the left of the rear
panel as seen from the front, and all right-channel inputs and outputs
are on the right of the rear panel as seen from the front. This design
minimizes any possible confusion when changing connections once the
unit is installed, while also maximizing channel separation in this dual
monaural preamplifier.
1 Balanced Main Outputs
If your power amplifier is equipped with balanced (sometimes
called “differential”) inputs, it is best to use these balanced outputs
on your Nº380. A balanced signal from preamplifier to power am-
plifier will offer the highest possible performance with the best
immunity from common-mode noise, such as radio frequency in-
terference (RFI). The balanced output signal is made available by
way of precision male XLR connectors (requiring female XLRs on
the preamplifier end of the interconnecting cable).
The pin assignments of these XLR-type male outputs are:
12
3
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal – (inverting)
Connector ground lug: chassis ground