2
Voltage selection
The Nº27.5 is factory-set (internally) for 100V, 120V, 200V, 220V, or
240VAC mains operation. Check that the label on the rear panel of
the amplifier indicates the correct AC operating voltage for your
location.
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PUSHPUSH
AC mains fuses
AC connectorOutput (right) Output (left)
Nº27.5
DUAL MONAURAL AMPLIFIER
WARNING:
HAZARDOUS VOLTAGES AVAILABLE INSIDE: DISCONNECT AC~ MAINS CABLE
BEFORE REMOVING ANY COVERS. HIGH ENERGY AVAILABLE AT LOAD
TERMINALS. REFER TO OWNER'S MANUAL FOR PROPER TERMINATION
INSTRUCTIONS. DISCONNECT AMPLIFIER FROM AC~ MAINS BEFORE
REPLACING FUSES.
MAINS FUSES: PLEASE CONSULT OWNER'S MANUAL.
• 90 - 110 VAC~
• 105 - 125 VAC~
• 180 - 220 VAC~
• 210 - 240 VAC~
• 230 - 250 VAC~
• ~47-400 Hz
SERIAL NO.
INPUT
BALANCED INPUT
OUTPUT
RIGHT CHANNEL LEFT CHANNEL
+– +–
OPERATING
VOLTAGE:
Voltage indicationShorting strap
Balanced
input (right)
Balanced
input (left)
Single-ended
input (left)
Single-ended
input (right)
Shorting strap
DESIGNED AND MANUFACTURED IN U.S.A. BY
MADRIGAL AUDIO LABORATORIES, INC.
®
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Figure 1: Rear panel
If the voltage indicated is incorrect, see your Mark Levinson dealer.
If you wish to change the AC operating voltage of your Nº27.5, see
your Mark Levinson dealer.
A Nº27.5 may be powered by a 15-ampere AC mains line. Lack of
available current from the AC circuit may affect the amplifier's
performance, so if other devices are also powered from the same AC
circuit, you must consider their additional power consumption. For the
best results, we recommend that you connect the Nº27.5 to an
isolated, dedicated AC circuit with a minimum rating of 15 amperes.
Two slow-blow 250V 3AG fuses (10 ampere @ 100V and 120VAC, and
6.25 ampere @ 200V, 220V, and 240VAC) are located on the rear
panel of the Nº27.5. Replace the fuses with the same type only.
ALWAYS remove the AC cord before removing the fuses.
PRECAUTION
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