McIntosh MC275 Owner's Manual
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Also See for MC275:
- Service manual (22 pages) ,
- Owner's manual (13 pages) ,
- Maintenance manual (4 pages)
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Summary of Contents for McIntosh MC275
- Page 1 Stereo Power Amplifier MC275 Owner’s Manual McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 FAX: 607-724-0549...
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Page 2: Safety Instructions
The lightning flash with arrowhead, The exclamation point within an within an equilateral triangle, is equilateral triangle is intended to intended to alert the user to the alert the user to the presence of im- presence of uninsulated “danger- portant operating and maintenance ous voltage”... -
Page 3: Table Of Contents
Customer Service the MC275. If it is determined that your McIntosh product is in need of 5. The Main AC Power going to the MC275 and any other repair, you can return it to your Dealer. You can also return McIntosh Component(s) should not be applied until all it to the McIntosh Laboratory Service Department. -
Page 4: Connector Information
Loudspeaker System to its ultimate performance. The MC275 reproduction is sonically transparent and abso- • Gold Plated Connectors and Tube Socket Contacts lutely accurate. The McIntosh Sound is “The Sound of the Gold Plated Input Jacks and Output Binding Posts provide Music Itself.”... -
Page 5: Dimensions
Dimensions Dimensions The following dimensions can assist in determining the best location for your MC275. There is additional infor- mation on page 7 pertaining to installing the MC275 into cabinets. " -1/2 41.91cm " -7/8 " -1/4 20.00cm 20.96cm Front View of the MC275 "... -
Page 6: Installation Of Tubes And Tube Cover
Installation of Tubes and Tube Cover Caution: To prevent electrical shock make sure that the AC POWER CORD IS NOT CONNECT- ED TO THE MC275 when inserting or removing Tubes, as there are hazardous volt- ages present at the pins of the Tube Sockets. Your MC275 has gone through an extensive series of performance tests during the manufacturing process. -
Page 7: Location And Ventilation
Installation of Tubes, Tube Cover, Location and Ventilation Small Signal Tubes: 1. Locate a 12AX7A Tube. 2. On the top left side of the amplifier, locate the Tube Socket that has the nomenclature V1 12AX7A next to it on the chassis. Refer to figure 4 and 5. KT88/6550 3. -
Page 8: Left Side Panel Connections
Left Side Panel Connections LEFT OUTPUT Connections for loudspeakers RIGHT OUTPUT Connections for loudspeakers BALANCED INPUTS for audio cables from a preamplifier or control center audio outputs UNBALANCED INPUTS for audio cables from a preamplifier or control center audio outputs... -
Page 9: Right Side Panel Connection And Fuse Holder
Right Side Panel Connection and Fuse Holder Connect the MC275 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 MC275 to determine the correct fuse size and rating... -
Page 10: How To Connect For Stereo
McIntosh Preamplifier tightly as possible. 75 WATTS Note: If desired, the twisted ends can be tinned with solder to keep the strands together, or attach T630maAL 250V spade lug and/or banana connector. McIntosh Loudspeaker McIntosh Loudspeaker McIntosh MC275 (Partial View) -
Page 11: How To Connect For Mono Parallel
COMmon Connection 16Ω Connection connector. Spade lug or prepared wire con- nection: McIntosh Preamplifier Insert the spade lug connector or prepared section of the cable end 75 WATTS T630maAL 250V Jumper McIntosh MC275 (Partial View) Jumper... -
Page 12: Left Side Panel Controls And Switches
Left Side Panel Controls and Switches MODE Switch selects MONO (Parallel) or STEREO Modes of operation Power Switch turns all AC power On or Off INPUTS Switch selects between the BALanced or UNBALanced Inputs... -
Page 13: How To Operate
Off position to stop amplifying Figure 8 the audio signal. Refer to figure 8. Note: If the MC275 is connected to a McIntosh Preamplifier, Control Center or A/V Center, the addition of a Mc- Intosh Power Controller such as a PC4 will allow the MC275 to switch On and Off automatically. -
Page 14: Specifications
Specifications Specifications Power Output Stereo Tube Compliment Minimum sine wave continuous average power output per 3 - 12AX7A Inputs and Phase Inverters channel, both channels operating is: 4 - 12AT7 Voltage Amplifier and Drivers 75 watts into 4, 8 or 16 ohm load 4 - KT88/6550 Power Output Power Output Mono (Parallel) Power Requirements... -
Page 15: Packing Instructions
If a shipping 033706 Rear pad carton or any of the interior part(s) are needed, please call 033711 Side pads or write Customer Service Department of McIntosh Labo- ratory. Please see the Part List for the correct part numbers. 017862 Plastic foot... - Page 16 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. McIntosh Part No. 04099600...
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