MC275 Stereo Operation Connection Diagram 1 A McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com Part No. 04133600 Audio Preamplifier Note: Refer to the MC275 Owner’s Manual page 10 for additional connection information. Connection Legend: Data Cable*- Digital Signal Cable - Sensor/Keypad Cable - Network/RS232 Cable - Power Control Cable* - Ground Wire - Audio Signal Cable - AC Power Cords - Video Signal Cable - Loudspeaker Cable - RF Signal Cable - * 2 conductor shielded with 1/8 inch stereo mini phone plug on each end. Connect to AC Outlet Right Loudspeaker System Left Loudspeaker System Handcrafted in USA with US and Imported Parts (-) (+)8Ω (-) (+)8Ω (+)8Ω (-) (+)8Ω (-)
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MC275 Stereo Operation Connection Diagram1A
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com Part No. 04133600
Audio PreamplifierNote: Refer to the MC275 Owner’s Manual page 10 for additional connection information.
Connection Legend: Data Cable*- Digital Signal Cable - Sensor/Keypad Cable - Network/RS232 Cable - Power Control Cable* - Ground Wire - Audio Signal Cable - AC Power Cords - Video Signal Cable - Loudspeaker Cable - RF Signal Cable - * 2 conductor shielded with 1/8 inch stereo mini phone plug on each end.
Connect to AC Outlet
Right Loudspeaker System Left Loudspeaker System
Handcrafted in USA with USand Imported Parts
(-) (+)8Ω(-) (+)8Ω
(+)8Ω
(-) (+)8Ω
(-)
MC275 Monaural Operation Connection Diagram 1B
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
Audio PreamplifierNote: Refer to the MC275 Owner’s Manual page 12 for additional connection information.
Connection Legend: Data Cable*- Digital Signal Cable - Sensor/Keypad Cable - Network/RS232 Cable - Power Control Cable* - Ground Wire - Audio Signal Cable - AC Power Cords - Video Signal Cable - Loudspeaker Cable - RF Signal Cable - * 2 conductor shielded with 1/8 inch stereo mini phone plug on each end.
Connect to AC Outlet
Loudspeaker System
Handcrafted in USA with USand Imported Parts
JUMPERBAR1
(-)(-)
(+)16Ω(+)16Ω
To second MC275
1NOTE: When the Mode Switch is set to MONO, the supplied Jumper Bars are used to connect the output of the Left and Right Amplifier Chan-nels in parallel. The effective output imped-ance of the MC275 Power Amplifier is now 8Ω, even though the physical connections are made to the 16Ω terminals.The 8Ω terminals would be paralleled when a 4Ω Loudpeaker is connected to the MC275 (operating in MONO Mode). Likewise the 4Ω terminals would be paralleled when a 2Ω Loudpeaker is connected to the MC275 (oper-ating in MONO Mode).