Related Manuals for McIntosh MC255
Summary of Contents for McIntosh MC255
- Page 1 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com MC255 Power Amplifier Owner’s Manual...
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Page 2: Table Of Contents
Technical Assistance and Customer Service ....2 Purchase Date: _______________________________ it to the McIntosh MC255. Table of Contents ............2 In the event the MC255 over heats, due to improper General Information ........... 2 Dealer Name: ________________________________ ventilation and/or high ambient temperature, the Connector and Cable Information ......3... -
Page 3: Connector And Cable Information
Stainless Steel Chassis with Super Mirror Fin- Output Terminal Connector The Zone B on the MC255 provides Two Channel ish ensures the pristine beauty of the MC255 will be When cables with spade lugs are used Music Playback in a second room with 200 watts retained for many years. -
Page 4: Dimensions
Dimensions Dimensions The following dimensions can assist in determining the best location for your MC255. Front View of the MC255 " 44.5cm " " 7/16 22.5cm Side View of the MC255 24.0cm 1/4" 46.4cm " 42.2cm Rear View of the MC255 "... -
Page 5: Installation
Installation Installation 17" The MC255 can be placed upright on a table or 43.18cm 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... -
Page 6: Rear Panel Connections And Switch
INPUT 4 Balanced Con- INPUT 2 Balanced INPUTS 1 & 3 Unbalanced Sets the impedance ceives a turn On/Off signal from a McIntosh Connection for the nection for the Right Sur- Connection for the Left Connection for the Left Front... -
Page 7: Output Terminals And How To Connect
Figure 2 Figure 3 Figure 4 4. Place the supplied McIntosh 3. The MC255 has connections for Balanced Audio Figure C Figure D Wrench over the top of the Out- Notes: 1. If desired, the twisted ends can be tinned XLR Connection Cables that come from the con- with solder to keep the strands together. - Page 8 Place the LOAD the available connections, use the nearest lower Switch on the rear panel of the MC255 to either impedance connection. Refer to “General Informa- the 4 or 8 Ohm Setting, to match the impedance of tion”...
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Page 10: Front Panel Displays And Controls
Front Panel Displays and Controls Meter indicates the Front Meter indicates the Front The LED indicates when the POWER Meter indicates the Front Left Channel Output of Center Channel Output GUARD Circuitry has activated for the Right Channel Output of the amplifier of the amplifier Amplifier Center Channel (C4) -
Page 11: How To Operate
Note: If the Power Save Circuitry has switched Power Figure 10 output. POWER Control in the OFF position. to the MC255 OFF, place the POWER in the OFF Note: When Power Control Position and then in the ON position to reset the Input of the MC255 is MC255 Channel Operation circuitry. -
Page 12: Technical Description
25 amperes per channel; making this one of the most advanced amplifiers available today. The distortion limits for the MC255 are no more than 0.005% at rated power output for all frequencies from 20Hz to 20,000Hz. Typical performance at mid frequencies is less than 0.002%. - Page 13 More than then drops. It is almost 10 times faster than a profes- allows for the instantaneous and accu- 2800 square inches of heat sink area keep the MC255 sional VU meter. rate monitoring of the Power Transistor operating safely with convection cooling.
- Page 14 Protection Circuits The Power Guard Without Power Guard circuit is a waveform To compliment the design of the MC255 Power Am- The MC255 incorporates the McIntosh Sentry Moni- tor Output Transistor Protection Circuit. Refer to comparator, monitoring plifier Circuitry, there is a high current high voltage both the input and output power supply.
- Page 15 McIntosh A/V Control Center. When the A/V Control Center is switched On, a (+5V) signal operates the power relay in the MC255. The MC255 also has two remote Power Control Out Jacks. The Power Control signal from these jacks is delayed by a fraction of a second so that the turn on power surge of the next power amplifier occurs at a later time.
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Page 17: Photos
Photos... -
Page 18: Specifications
240 Volts, 50/60Hz at 6.5 Amps 8 and 4 ohms Greater than 140 at 8 ohms Standby: less than 0.5 watt Note: Refer to the rear panel of the MC255 for the cor- rect voltage. Rated Power Band Input Impedance... -
Page 19: Packing Instruction
Customer Service Depart- ment of McIntosh Laboratory. Refer to page 2. Please see the Part List for the correct part numbers. Quantity Part Number Description... - Page 20 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 www.mcintoshlabs.com 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. 24105100...
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