McIntosh MA-2275 Brochure
MA2275
Tube Integrated Amplifier
Promotional Highlights
• Vacuum Tube Design
• 6 Input Program Source selections, 5 Unbalanced
and 1 Balanced or Unbalanced
• Tape Recorder Loop
• Unique McIntosh Unity Coupled Output Circuit
and Output Transformers for 2, 4, and 8 ohm
speakers.
• Electro Magnetic Input Switching
• Illuminated Output Wattmeters
• Gold Plated Input and Output Connectors
• Low Noise 1% Metal Film Resistors Used
• IR Remote Control
• Switched Data Output Ports
• Front Panel Headphone Jack
• Tube Saver Auto Turn-On Delay
Performance Features
Power Output: 75W per channel into 2, 4, or 8
ohm load is the minimum sine wave continuous
average power output per channel, both channels
operating.
Rated Power Band: 20Hz to 20kHz
Total Harmonic Distortion: 0.5% max harmonic
distortion at any level from 250 milliwatts to rated
power output.
Frequency Response: +0, -0.5dB from 20Hz to
20kHz; +0, -3dB from 10Hz to 50kHz
Sensitivity: Phono: 2.5mV for 2.5V rated output
(0.5mV IHF); High Level: 250mV for 2.5V rated
output (50mV IHF); Power Amplifier Input: 2.5V
for rated output.
Signal-To-Noise Ratio A-Weighted:
Phono Input: 80dB below 10mV input
High Level: 93dB below rated output
Power Amp: 100dB below rated output
Input Impedance: Phono: 47k ohms, 65pF
High: Level, 22k ohms
Maximum Input Signal: Phono: 90mV; High
Level: 8V
Preamp Maximum Voltage Output: Phono: 8V;
High Level; 8V; Main Out; 8V at preamp output.
Power Requirements: 120Volts, 50/60Hz at 3.6
amps
Preamplifier Tube Compliment:
2 – 12AX7A Phono Circuitry
2 – 12AX7A High Level Circuitry
Power Amplifier Tube Compliment:
2 – 12AT7; 4 – KT88/6550
Overall Dimensions (H x W x D): 10-1/8”
(25.7cm) x 17-3/4” (45cm) x 18-3/4” (47.6cm)
Weight: 77 lbs (35kg) net, 110 lbs. (50kg) boxed
For more information on the MA2275 Tube Integrated Amp and other McIntosh
equipment contact your nearest Authorized McIntosh Dealer!
McIntosh Laboratory, Inc. 2 Chambers St. Binghamton, NY 13903-2699 www.mcintoshlabs.com
Handcrafted with pride in the United States by dedicated, highly trained craftspeople.
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