2
Voltage selection
The Nº20.6 can be internally set for 100V, 120V, 200V, 220V, or 240VAC
mains operation. Make sure that the label on the rear panel indicates
the correct AC operating voltage for your location.
PUSH
AC mains fuses
Balanced
input
Single-ended inputs
Output
–
+
AC mains
connector
INPUTS
BALANCED
INPUT
OUTPUT
–
+
–
+
Nº20.6
MONAURAL REFERENCE 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:
• 90 - 110 VAC~
• 105 - 125 VAC~
• 180 - 220 VAC~
• 210 - 240 VAC~
• 230 - 250 VAC~
• ~47-400 Hz
SERIAL NO.
OPERATING
VOLTAGE:
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 . B Y
M A D R I G A L A U D I O L A B O R A T O R I E S , I N C .
Voltage
indication
Chassis ground
binding post
®
–
+
FU
S
E
•
F
U S E • F
U
S
E •
FU
S
E
•
F
U S E • F
U
S
E •
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 Nº20.6,
contact your Mark Levinson dealer.
A pair of Nº20.6 amplifiers may be powered by a 15-ampere AC mains
line. For optimum performance into lower impedance loads, however,
it's recommended that the AC mains outlets used for the Nº20.6 be
capable of supplying a minimum of 15A @ 100V or 120VAC, and 7.5A
@ 200V, 220V, or 240VAC
per amplifier
. If other devices are also
powered from the same AC circuit, their additional power
consumption must be considered.
Two slow-blow 250V 3AG fuses (10A @ 100V or 120VAC, and 5A @
200V, 220V, or 240VAC) are located on the rear panel of the Nº20.6.
Replace the fuses with the same type only.
ALWAYS
remove the AC cord before removing the fuses.
PRECAUTION