McIntosh MC451 User Manual

11
SERIAL
NUMBER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
MC 4 5 1 DUA L M O NO PO W E R AMP L I FI E R
McINTOSH LABORATORY, INC., BINGHAMTON, NY
HANDCRAFTED IN USA WITH US AND IMPORTED PARTS
+++
-
8Ω 4Ω 2Ω COM
-
COM
++
4Ω 8Ω
+
2Ω
SOLID STATE (300W) OUTPUTS
CLASS 2 WIRING
VACUUM TUBE (150W) OUTPUTS
CLASS 2 WIRING
POWER
CONTROL
OUT
IN
AUTO OFF
ENABLED
DISABLED
CROSSOVER
(MONO MODE)
VACUUM TUBE
INPUT
INPUT MODE
BALANCED
UNBALANCEDBAL
UNBAL
MONO SOLID STATE/
INPUT
AMPLIFIER MODE
MONO
SEPARATEBAL
UNBAL
300
250 400
550
180
130 800
1k100
CROSSOVER POINT
Hz
+1. 2
-3
+3-6
0
VACUUM TUBE LEVEL
dB
LOW
MID / HIGH
LOW
MID / HIGH
Le Loudspeaker System
LOW
MID / HIGH
LOW
MID / HIGH
Any jumpers between the low
and mid/high sections of the
loudspeakers MUST be removed
prior to connecting the MC451.
REMOVE REMOVE
Connection Diagram

McIntosh MC451 Specifications

General

Brand	McIntosh
Model	MC451
Category	Amplifier
Language	English