Performance Limits and Ratings
PERFORMANCE LIMITS
Performance limits are the maximum deviation
from perfection permitted for a Mclntosh instru-
ment. We promise you that when you purchase a
new C 33 from a Mclntosh franchised dealer, it will
be capable of or can be made capable of perfor-
mance at or exceeding these limits or you can return
the unit and get your money back. Mclntosh is the
only manufacturer that makes this statement.
PREAMPLIFIER SECTION
FREQUENCY RESPONSE
+ 0, -0.5dB from 20Hz to 20,000Hz
MAXIMUM VOLTAGE OUTPUT
10 volts from 20Hz to 20,000Hz
TOTAL HARMONIC DISTORTION
0.01% maximum from 20Hz to 20,000Hz
at rated output
SENSITIVITY
Phono- 2mV for 2.5V rated output
(0.4mV IHF)
High Level- 250mV for 2.5V rated output
(50mV IHF)
SIGNAL TO NOISE RATIO, A-WEIGHTED
Phono- 90dB below 10mV input
(84dB IHF)
High Level- 100dB below rated output
(86dB IHF)
MAXIMUM INPUT SIGNAL
Phono- 100mV
High Level- 10 volts
INPUT IMPEDANCE
Phono- 47k ohms and 65pf capacitance
High Level- 50k ohms
EQUALIZATION CONTROLS
Variable 12dB boost to 12dB cut at center fre-
quencies of 30, 150, 500, 1500, 10k Hz
COMPANDOR RATIOS
From 1:2 compression to 2:1 expansion
LF FILTER
Flat or roll-off at 12dB per octave below 50 Hz.
HF FILTER
Flat or roll-off at 12dB per octave above 7,000 Hz.
MONITOR AMPLIFIER SECTION
CONTINUOUS AVERAGE POWER OUTPUT
20 watts per channel into 8 ohms, from 20Hz to
20kHz, at 0.01% maximum harmonic distortion
FREQUENCY RESPONSE
+ 0 -0.2dB from 20Hz to 20,000Hz
SENSITIVITY
750mV for rated output (170mV IHF), input im-
pedance is 27K ohms
SIGNAL TO NOISE RATIO, A-WEIGHTED
100dB below rated output (87dB IHF)
GENERAL INFORMATION
SEMICONDUCTOR COMPLEMENT
31 Bipolar Transistors
76 Field Effect Transistors
35 Integrated Circuits
107 Diodes
1 Silicon Controlled Rectifier (SCR)
AC POWER OUTLETS
2 turntable current-sensing, 100 watts, green
4 switched, 1200 watts total, black
POWER REQUIREMENTS
120 volts, 50/60 Hz, 25 to 85 watts
MECHANICAL INFORMATION
SIZE:
Front panel measures 16 inches wide (40.6 cm)
by 5-7/16 inches high (13.8 cm). Chassis measures
15 inches wide (38.1 cm) by 5 inches high (12.7 cm)
by 13 inches deep (33.0 cm), including PANLOC
shelf and back panel connectors. Knob clearance
required is 1-1/2 inches (3.81 cm) in front on the
mounting panel.
FINISH:
Front panel is anodized gold and black with
special gold/teal nomenclature illumination.
Chassis is black.
MOUNTING:
Exclusive Mclntosh developed professional
PANLOC
WEIGHT:
26 pounds (11.8 kg) net, 38 pounds (17.2 kg) in
shipping carton
-18-
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