Rear Panel - Mark Levinson 38S Operating Manual

1 2 3
right balanced right balanced right balanced
main out input 1
PUSH
right main out
PRECAUTION
12
4
c o m m u n i c a t i o n
right right
rec out 1 rec out 2 slave
input 2
right right right right
PUSH
input 3 input 4 input 5 input 6
6 7

Rear panel

Disconnect all associated equipment from the AC mains BEFORE
making any signal connections and applying power to the Nº38S.
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 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 Nº38S. A balanced signal from preamplifier to power
amplifier will offer the highest possible performance with the best
immunity from common-mode noise, such as radio frequency
interference (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:
1 2
3
Refer to your power amplifier's operating manual to verify that the
pin assignments of its input connectors correspond to the Nº38S. If
not, wire the cable so that the appropriate output pin connects to
the equivalent input pin.
Connect the right-channel and left-channel Balanced Main
outputs of the Nº38S to the appropriate balanced inputs of the
power amplifier.
5 4
p o r t s
left left
external master rec out 2 rec out 1
left left left left
input 6 input 5 input 4 input 3
7 6
Pin 1: Signal ground
Pin 2: Signal + (non-inverting)
Pin 3: Signal – (inverting)
Connector ground lug: chassis ground
PREAMPLIFIER Nº38S
d e s i g n e d a n d m a n u f a c t u r e d i n U . S . A .
MADRIGAL S/N
b y
left balanced left balanced left balanced
input 2 input 1 main out
PUSH PUSH
left main out
2
3
1