McIntosh MC275 Fascicule
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35007100 MC
275
Mc275
vacuum tube power amplifier
POWER OUTPUT STEREO
Minimum sine wave continuous average power
output per channel, both channels operating is:
75 watts into 4, 8 or 16 Ohm load.
Minimum sine wave continuous average power
output per channel, both channels operating is:
75 watts into 4, 8 or 16 Ohm load.
POWER OUTPUT MONO (PARALLEL)
Minimum sine wave continuous average power
output is: 150 watts into 2, 4 or 8-Ohm load
Minimum sine wave continuous average power
output is: 150 watts into 2, 4 or 8-Ohm load
OUTPUT LOAD IMPEDANCE
4, 8, or 16 Ohm (stereo) 2, 4, or 8 Ohm (mono)
4, 8, or 16 Ohm (stereo) 2, 4, or 8 Ohm (mono)
RATED POWER BAND
20Hz to 20,000Hz
20Hz to 20,000Hz
TOTAL HARMONIC DISTORTION
Maximum Total Harmonic Distortion at any
power level from 250 milliwatts to rated power
output is 0.5%
Maximum Total Harmonic Distortion at any
power level from 250 milliwatts to rated power
output is 0.5%
FREQUENCY RESPONSE
+0 /-0.5dB from 20Hz to 20,000Hz
+0/-3dB from 10Hz to 70,000Hz
+0 /-0.5dB from 20Hz to 20,000Hz
+0/-3dB from 10Hz to 70,000Hz
SENSITIVITY
1.2V unbalanced inputs
2.5V balanced inputs
1.2V unbalanced inputs
2.5V balanced inputs
A-WEIGHTED SIGNAL-TO-NOISE RATIO
100dB
100dB
INTERMODULATION DISTORTION
Maximum Intermodulation Distortion if
instantaneous peak output per channel does
not exceed twice the rated output, for any
combination of frequencies from 20Hz to
20,000Hz, with both channels
operating is 0.5%.
Maximum Intermodulation Distortion if
instantaneous peak output per channel does
not exceed twice the rated output, for any
combination of frequencies from 20Hz to
20,000Hz, with both channels
operating is 0.5%.
WIDE BAND DAMPING FACTOR
Greater than 14
Greater than 14
POWER REQUIREMENTS
120V, 50/60Hz, 3.6A
120V, 50/60Hz, 3.6A
OVERALL DIMENSIONS
(H x W x D including feet and knobs)
8-1/4” (21cm) x 16-1/2” (42cm) x 12” (30.5cm)
(H x W x D including feet and knobs)
8-1/4” (21cm) x 16-1/2” (42cm) x 12” (30.5cm)
WEIGHT
67 lbs. (30.5kg) net
75 lbs. (34.1kg) boxed
67 lbs. (30.5kg) net
75 lbs. (34.1kg) boxed
FULL POWER DELIVERY
The MC275 Series IV delivers 75 watts per
channel into 4, 8, and 16 Ohm speakers.
channel into 4, 8, and 16 Ohm speakers.
ULTRA LOW NOISE
AND DISTORTION
Distortion-canceling properties of
McIntosh’s Unity-Coupled circuit and
unique Output Transformer design yield
much lower distortion and noise across
the entire 20-20,000Hz music range.
McIntosh’s Unity-Coupled circuit and
unique Output Transformer design yield
much lower distortion and noise across
the entire 20-20,000Hz music range.
WIDE BANDWIDTH
McIntosh’s exclusive Output Circuit and
Transformer designs ensure ultra-wide
frequency bandwidth.
Transformer designs ensure ultra-wide
frequency bandwidth.
MONOBLOCK
The two 75-watt channels may be com-
bined into a single channel of 150 watts
into 2, 4 or 8-Ohm loads.
bined into a single channel of 150 watts
into 2, 4 or 8-Ohm loads.
INVERTED CHASSIS
Heat producing tubes are located
on top of the chassis, under a protective
cage, while other circuits are shielded
within the polished Stainless Steel
Chassis.
on top of the chassis, under a protective
cage, while other circuits are shielded
within the polished Stainless Steel
Chassis.
FOR THE CONSUMER’S
PROTECTION
In order to ensure the highest level
of customer satisfaction, “new” McIntosh
products may only be purchased over-the-
counter or delivered and installed by an
Authorized McIntosh Dealer.
of customer satisfaction, “new” McIntosh
products may only be purchased over-the-
counter or delivered and installed by an
Authorized McIntosh Dealer.
McIntosh products that are purchased
over the Internet, by phone or mail order
are presumed to be “used” and do not
qualify for any McIntosh Warranty.
McIntosh does not warrant, in any way,
products that are purchased from anyone
who is not an Authorized Dealer or prod-
ucts that have had their serial number
altered or defaced.
over the Internet, by phone or mail order
are presumed to be “used” and do not
qualify for any McIntosh Warranty.
McIntosh does not warrant, in any way,
products that are purchased from anyone
who is not an Authorized Dealer or prod-
ucts that have had their serial number
altered or defaced.