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McIntosh MA2275 - page 1
MA2275 Owner ’ s Manual McIntosh Laboratory , Inc. 2 Chambers S treet Binghamton, New Y ork 13903-2699 Phone: 607-723-3512 F AX: 607-724-0549 T ube Integrated Amplifier ...
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McIntosh MA2275 - page 2
2 IMPOR T ANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERA TING THIS EQUIPMENT . W ARNING - T O REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT T O RAIN OR MOISTURE. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” wit ...
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McIntosh MA2275 - page 3
3 Customer Service T echnical Assist ance Please T ake A Moment Thank Y ou Copyright 2004 © by McIntosh Laboratory , Inc. The serial number , purchase date and McIntosh Dealer name are important to you for possible insurance claim or future service. The spaces below have been provided for you to record that information: Y our decision to own this ...
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McIntosh MA2275 - page 4
4 Performance Features Introduction and Performance Features Introduction Now you can take advantage of traditional McIntosh stan- dards of excellence in the MA2275 T ube Integrated Ampli- fier . The versatile Preamplifier together with two 75 watt Power Amplifier Channels provide all the electronics nec- essary to drive any high quality Loudspeake ...
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McIntosh MA2275 - page 5
5 Dimensions The following dimensions can assist in determining the best location for your MA2275. There is additional infor - mation on page 8 pertaining to installing the MA2275 into cabinets. Dimensions 17- 3/4 " 45.09cm 8- 7/8 " 22.54cm Front View of the MA2275 Rear View of the MA2275 Side V iew of the MA2275 10- 1/8 " 25.72cm 13 ...
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McIntosh MA2275 - page 6
6 Inst allation of T ubes and T ube Cover Caution: T o prevent electrical shock make sure the AC POWER CORD IS NOT CONNECTED T O THE MA2275 . Also do not touch the V acuum T ube Connection Pins when inserting or removing them, as there may be hazardous voltages present at the T ube Socket Pins even after the MA2275 has been switched Off for a perio ...
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McIntosh MA2275 - page 7
7 W arm Air Cool Air Inst allation of T ubes, T ube Cover , Location and V entilation 6. Repeat the above the steps for the remaining 3 Power Output T ubes. There are two different types of Small Signal Tubes (12AX7A and 12A T7) used in each channel. T ube type can be found on the outside of the T ube. The MA2275 will not function if they are inser ...
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McIntosh MA2275 - page 8
8 The MA2275 can be placed upright on a table or shelf, standing on its four feet. It also can be custom installed in a piece of furniture or cabinet of your choice. The four feet may be removed from the bottom of the MA2275 when it is custom installed as out- lined below . The four feet together with the mounting screws should be retained for poss ...
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McIntosh MA2275 - page 9
9 T op Panel Connections and T ube Locations V3R KT88/ 6550 V7 12AX7A V1R 12A T7 RIGHT Channel OUTPUT s connections for 2 ohm, 4 ohm and 8 ohm Loudspeakers LEFT Channel OUTPUT s connections for 2 ohm, 4 ohm and 8 ohm Loudspeakers V2R KT88/ 6550 V2L KT88/ 6550 V3L KT88/ 6550 V1L 12A T7 V4 12AX7A V6 12AX7A V5 12AX7A ...
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McIntosh MA2275 - page 10
10 Rear Panel Connections Connect the MA2275 power cord to a live AC outlet. Refer to information on the back panel to determine the correct voltage Main Fuse holder , refer to information on the back panel of your MA2275 to determine the cor- rect fuse size and rating External SENSOR or Keypad Jack permits the con- nection of a McIn- tosh IR Senso ...
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McIntosh MA2275 - page 11
11 Right Loudspeaker 4 ohm Left Loudspeaker 4 ohm How to Connect Loudspeakers Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MA2275 Integrated Amplifier until after Connections have been made. 1. Prepare the Loudspeaker Hookup Cables that attach to the MA2275 by choosing one of the methods below: Bare wire cabl ...
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McIntosh MA2275 - page 12
12 How to Connect Audio Components 1. Connect an Audio Cable from the McIntosh CD Player Audio Outputs to the MA2275 CD INPUTS. 2. Connect an Audio Cable from the McIntosh T uner 1 Outputs to the MA2275 TUNER INPUTS. 3. Connect an Audio Cable from a T urntable to the PHONO INPUTS and the T urntable Ground Connec- tion to the GND grounding post. 4. ...
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McIntosh MA2275 - page 13
13 How to Connect for a Second Room How to Connect for a Second Room 1. Connect Audio Cables from the MA2275 OUTPUTS PREAMP 2 to the second Power Amplifier Inputs. 2. Connect Hookup Cables from the second Power Ampli- fier to the Loudspeakers. Refer to page 1 1 in this Owner ’ s Manual for connection details. 3. Connect a Control Cable from the M ...
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McIntosh MA2275 - page 14
14 POWER Switch turns all AC power completely ON or OFF VOLUME Control adjusts the listening volume level of the Loudspeakers and Headphones MONO Push-button combines left and right stereo signals to mono at the Headphones and PREAMP OUTPUTS 1&2 MUTE Push-button mutes the listening audio ST ANDBY/ON Push-button turns the MA2275 ON or OFF (Stand ...
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McIntosh MA2275 - page 15
15 Power On and Off Press the POWER switch to ON, the Red LED above the ST ANDBY/ON Push-button lights to indicate the MA2275 is in Standby Mode. T o Switch On the MA2275 press the ST ANDBY/ ON Push-button on the Front Panel or the POWER Push-button on the Remote Control. The title TUBE W ARMUP will illuminate on the Front Panel (located to the rig ...
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McIntosh MA2275 - page 16
16 Figure 14 V olume Control Adjust the VOLUME Control or press the Up S /Down T Push- buttons on the Remote Control for the desired listening level. Refer to figure 13. Record Monitor Press the REC MONITOR Push-button to hear the T APE Playback Signal during the re- cording process. Refer to figure 14. T one Bypass Press the T ONE BYP ASS Push-but ...
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McIntosh MA2275 - page 17
17 Notes ...
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McIntosh MA2275 - page 18
18 Remote Control Push-Buttons Selects one of the five High Level Audio Sources or the Phono Input T urns AC Power ON or OFF to cer- tain McIntosh Components when connected via the Data Port Adjusts the volume level up or down Selects Disc Player , Music Server or T ape Recorder Functions and also per- forms various functions on a variety of McInto ...
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McIntosh MA2275 - page 19
19 How to Operate by Remote Control The supplied Remote Control is capable of directly control- ling the functions of contemporary McIntosh Source Com- ponents connected to the MA2275. Earlier McIntosh source components and other brand source components can be controlled by the MA2275 Remote Control with the ad- dition of a McIntosh Remote Control ...
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McIntosh MA2275 - page 20
20 ...
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McIntosh MA2275 - page 21
21 Notes ...
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McIntosh MA2275 - page 22
22 Specifications Specifications Power Output Minimum sine wave continuous average power output per channel, both channels operating is: 75 watts into a 2 ohm load 75 watts into a ohm load 75 watts into an 8 ohm load Rated Power Band 20Hz to 20,000Hz T otal Harmonic Distortion Maximum T otal Harmonic Distortion at any power level from 250 milliwatt ...
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McIntosh MA2275 - page 23
23 Packing Instructions Packing Instructions In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as de- scribed and shown below . The MA2275 V acuum T ubes must be removed from the Amplifier T ube Sockets and placed into the inside open- ings of the five layer foam packing material. The foam with ...
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McIntosh MA2275 - page 24
McIntosh Part No. 04099200 McIntosh Laboratory , Inc. 2 Chambers Street Binghamton, NY 13903 The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice. Printed in the U.S.A. ...
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