Page 2 - IMPORTANT SAFETY
2 IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. The lightning flash with arrowhead,within an equilateral triangle, is intendedto alert the user to the presence o...
Page 3 - Please take a short time to read the information in this; Caution: To prevent electrical shock make sure the AC
3 Customer Service Technical Assistance Please Take A Moment Thank You Copyright 2004 © by McIntosh Laboratory, Inc. The serial number, purchase date and McIntosh Dealername are important to you for possible insurance claim orfuture service. The spaces below have been provided foryou to record that ...
Page 6 - Installation of Tubes and Tube Cover; Caution: To prevent electrical shock make sure the AC; Tube Cover; Power Output Tubes
6 Installation of Tubes and Tube Cover Caution: To prevent electrical shock make sure the AC POWER CORD IS NOT CONNECTED TO THEMA2275 . Also do not touch the Vacuum TubeConnection Pins when inserting or removing them,as there may be hazardous voltages present at theTube Socket Pins even after the MA...
Page 7 - Installation of Tubes, Tube Cover, Location and Ventilation; Caution: To prevent electrical shock make sure the MA2275; Location and Ventilation; Tube Cover Fastening Screw Locations
7 Warm Air Cool Air Installation of Tubes, Tube Cover, Location and Ventilation 6. Repeat the above the steps for the remaining 3 Power Output Tubes. There are two different types of Small Signal Tubes(12AX7A and 12AT7) used in each channel. Tube type canbe found on the outside of the Tube. The MA22...
Page 8 - A custom cabinet instal-; Installation in a Custom Cabinet
8 The MA2275 can be placed upright on a table or shelf,standing on its four feet. It also can be custom installed in apiece of furniture or cabinet of your choice. The four feetmay be removed from the bottom of the MA2275 when itis custom installed as out-lined below. The four feettogether with the ...
Page 9 - Top Panel Connections and Tube Locations
9 Top Panel Connections and Tube Locations V3RKT88/6550 V712AX7A V1R12AT7 RIGHT Channel OUTPUTsconnections for 2 ohm, 4 ohmand 8 ohm Loudspeakers LEFT Channel OUTPUTsconnections for 2 ohm, 4 ohmand 8 ohm Loudspeakers V2RKT88/6550 V2LKT88/6550 V3LKT88/6550 V1L12AT7 V412AX7A V612AX7A V512AX7A
Page 10 - Rear Panel Connections
10 Rear Panel Connections Connect theMA2275 power cordto a live AC outlet.Refer to informationon the back panel todetermine the correctvoltage Main Fuse holder,refer to informationon the back panelof your MA2275 todetermine the cor-rect fuse size andrating External SENSORor Keypad Jackpermits the co...
Page 11 - Caution: The supplied AC Power Cord should not be; Prepare the Loudspeaker Hookup Cables that attach to; Note: The use of Banana Plugs is for use in the United; Connect the Loudspeaker hookup cables to the output; WARNING: Loudspeaker terminals are hazardous live; How to Connect Loudspeakers
11 RightLoudspeaker4 ohm LeftLoudspeaker4 ohm How to Connect Loudspeakers Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MA2275Integrated Amplifier until after Connections havebeen made. 1. Prepare the Loudspeaker Hookup Cables that attach to the MA2275 by choos...
Page 13 - Note: A Wall Mounted IR Sensor may also be used in
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 11 in thisOwner’s Manual for connection de...
Page 15 - Power On and Off; The amount of time; Input Source Selection; Bass and Treble Controls; Lights Off - Meter lights are turned off and the meter will; Balance Control; Note:For an explanation of the Remote Control Push-button
15 Power On and Off Press the POWER switch to ON, the Red LED above theSTANDBY/ON Push-button lights to indicate the MA2275is in Standby Mode. ToSwitch On the MA2275press the STANDBY/ON Push-button on theFront Panel or thePOWER Push-button onthe Remote Control.The title TUBE WARMUP will illuminate o...
Page 16 - How to Operate the MA2275, con’t
16 Figure 14 Volume Control Adjust the VOLUME Control orpress the Up S /Down T Push- buttons on the Remote Controlfor the desired listening level.Refer to figure 13. Record Monitor Press the REC MONITORPush-button to hear the TAPEPlayback Signal during the re-cording process. Refer to figure14. Tone...
Page 17 - Notes
Page 18 - Remote Control Push-Buttons; Mutes the audio
18 Remote Control Push-Buttons Selects one of the five HighLevel Audio Sources or thePhono Input Turns AC Power ON or OFF to cer-tain McIntosh Components whenconnected via the Data Port Adjusts the volumelevel up or down Selects Disc Player, MusicServer or Tape RecorderFunctions and also per-forms v...
Page 19 - Note: Your McIntosh Dealer can assist you with the; How to Operate by Remote Control
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 McIntoshsource components and other brand source components canbe controlled by the MA2275 Remote Control wit...
Page 22 - Greater than 18; Note: Refer to the rear panel of the MA2275 for the correct
22 Specifications Specifications Power Output Minimum sine wave continuous average power output perchannel, both channels operating is:75 watts into a 2 ohm load75 watts into a ohm load75 watts into an 8 ohm load Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion Maximum Total Harmonic Dist...
Page 24 - Chambers Street
McIntosh Part No. 04099200 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 The continuous improvement of its products isthe policy of McIntosh Laboratory Incorporatedwho reserve the right to improve design withoutnotice. Printed in the U.S.A.