Mark Levinson 27.5 User Manual

5
If your preamplifier is equipped with a balanced main output, and
particularly if long cable lengths are required between your
preamplifier and the Nº27.5, it's best to wire the Nº27.5 for balanced
operation.
Refer to your preamplifier's operating manual to verify that the pin
assignments of its outs correspond to Figure 3. If they don't, wire the
connector so that the appropriate output pin connects to the
equivalent input pin.
Before inserting the output-cable connectors, remove the shorting
strap from the Nº27.5's XLR-type inputs. Connect your preamplifier's
left-channel balanced main output to the left-channel XLR-type input
on the rear panel of the Nº27.5. Connect your preamplifier's right-
channel balanced main output to the right-channel XLR-type input on
the rear panel of the Nº27.5.
Balanced normal
(non-inverting) operation
PUSHPUSH
+–
Nº27.5
–+
–+
Left
Loudspeaker
+–
Right
Loudspeaker
From preamplifier main output
Right
channel
Left
channel
Figure 5: Connections for
balanced normal
(non-inverting) operation
For proper balanced operation, NEVER insert a connector (pre-
shorted or otherwise) into the RCA-type inputs on the rear panel
of the Nº27.5.
PRECAUTION

Mark Levinson 27.5 Specifications

General

Voltage Gain	26 dB
Frequency Response	20Hz - 20kHz
Total Harmonic Distortion	<0.1% at rated power
Input Sensitivity	1.5V
Signal to Noise Ratio	>80dB
Type	Solid-state
Power Output	100 watts per channel into 8Ω (stereo)