MA7000 Integrated Amplifier Features
EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM
A collection of technologies that enhance performance and reliability while protecting the amplifier and loudspeakers.
POWER GUARD®
A waveform comparison circuit continuously monitors both input and output signals. Power Guard dynamically adjusts the input level to avoid clipping while preventing harsh sounding distortion.
SENTRY MONITOR®
Fuse-less short-circuit protection circuit disengages the output stage before current exceeds safe operating level – resets automatically.
OUTPUT AUTOFORMER
Unique McIntosh technology delivers the full rated amplifier output with the least possible distortion into loudspeaker impedances of 2, 4, or 8 ohms; you get all the power you paid for and the freedom to choose any loudspeaker.
WATTMETER
Swift, accurate response reveals program peaks so staying within the power limits of your loudspeakers is easy.
MA7000 Integrated Amplifier Specifications
POWER OUTPUT
250 watts is the minimum sine wave continuous
average power output per channel, both channels
operating
OUTPUT LOAD IMPEDANCE
2, 4 or 8 ohms
RATED POWER BAND
20Hz to 20,000Hz
TOTAL HARMONIC DISTORTION
0.005% maximum with both channels operating
from 250 milliwatts to rated power, 20Hz to
20,000Hz
DYNAMIC HEADROOM
2.0dB
FREQUENCY RESPONSE
+0, -0.5dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
PREAMPLIFIER MAIN OUTPUT
(FOR RATED INPUT)
2.5V unbalanced (8V Maximun)
5.0V balanced (16V Maximun)
SENSITIVITY (FOR RATED OUTPUT)
High Level, 250mV unbalanced, 500mV balanced
Phono, 1.2 mV Power Amp In, 2.5V
SIGNAL TO NOISE RATIO (A-WEIGHTED)
High Level, 100dB below rated output
Phono, 84dB below 5mV input
Power Amplifier, 115 below rated output
INTERMODULATION DISTORTION
0.005% maximum, if the instantaneous peak power
is 500 watts or less per channel with both channels
operating for any combination of frequencies from
20Hz to 20,000Hz
WIDE BAND DAMPING FACTOR
Greater than 40
MAIN OUTPUT IMPEDANCE
50 ohms
INPUT IMPEDANCE
High Level, 20K ohms Phono, 47K ohms; 65pF
Power Amp In, 10K ohms
MAXIMUM INPUT SIGNAL
High Level, 8V unbalanced, 16V balanced
Phono, 45mV Power Amplifier In, 16V
POWER GUARD
Less than 2% THD with up to 16dB overdrive
at 1,000Hz
VOLTAGE GAIN
High Level to Rec Output: 0dB
High Level to Main Output: 20dB
Phono to Rec Output: 46dB
Phono to Main Output: 66dB
Power Amplifier: 25dB
EQUALIZER CONTROLS
Variable 12dB boost to 12dB cut at 30Hz, 150Hz,
500Hz, 1500Hz and 10,000Hz
POWER REQUIREMENTS
100 Volts, 50/60Hz at 8.0 amps
110 Volts, 50/60Hz at 7.2 amps
120 Volts, 50/60Hz at 6.6 amps
220 Volts, 50/60Hz at 3.3 amps
230 Volts, 50/60Hz at 3.3 amps
240 Volts, 50/60Hz at 3.3 amps
Standby: Less than 1 watt
Note: Refer to the rear panel of the
MA7000 for the correct voltage.
OVERALL DIMENSIONS (H X W X D)
INCLUDING THE FEET AND FRONT PANEL
KNOBS AND CABLES
Width is 17-1/2 inches (44.45cm) 9-7/16 inches
(23.97cm), 17-1/2 inches (44.45cm) x 22 inches
(55.88cm)
WEIGHT
97.5 pounds (44.3 kg) net
130.5 pounds (59.2 kg) in shipping carton
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.
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 products that have had their serial number altered or defaced.
