Related Manuals for McIntosh Power Amplifier MC303
Summary of Contents for McIntosh Power Amplifier MC303
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Page 1: Power Amplifier
Power Amplifier MC303 Owner’s Manual McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com... -
Page 2: Safety Instructions
The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “danger- ous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO... -
Page 3: Table Of Contents
Phone: 607-723-1545 Fax: 607-724-0549 Customer Service If it is determined that your McIntosh product is in need of repair, you can return it to your Dealer. You can also return it to the McIntosh Laboratory Service Department. For assistance on factory repair return procedure, contact the McIntosh Service Department at: McIntosh Laboratory, Inc. -
Page 4: Connector Information
The 300 watt high current output per channel will drive any high quality loudspeaker system to its ultimate per- formance. The MC303 reproduction is sonically transpar- ent and absolutely accurate. The McIntosh Sound is “The Sound of the Music Itself.” Performance Features •... -
Page 5: Dimensions
Dimensions The following dimensions can assist in determining the best location for your MC303. There is additional informa- tion on the next page pertaining to installing the MC303 into cabinets. Front View of the MC303 Rear View of the MC303 Side View of the MC303 45.09cm 44.15cm... -
Page 6: Installation
Be sure to cut out a ventilation hole in the mounting shelf ac- cording to the dimensions in the drawing. When the MC303 is installed together with other McIntosh Components, check clearances on all components before proceeding. Cabinet... -
Page 7: Rear Panel Connections And Switch
A/V Control Center or Pre- from a McIntosh component amplifier audio output and the POWER CONTROL OUT sends a turn On/Off signal to the next McIntosh Component BALANCED INPUT 3 for an audio cable from an A/V Control Center or Preamplifier audio... -
Page 8: How To Connect
12AWG 8 Ohms 16AWG 14AWG 5. This McIntosh MC303 Power Amplifier is designed for the connection of a single Loudspeaker per amplifier channel, with an impedance of 2 ohms, 4 ohms or 8 ohms. Note: The remaining Amplifier Loudspeaker Terminals should not be connected to another Loudspeaker. -
Page 9: How To Connect
4 Ohms 8 Ohms 16AWG 14AWG 5. This McIntosh MC303 Power Amplifier is designed for the connection of a single Loudspeaker per amplifier channel, with an impedance of 2 ohms, 4 ohms or 8 ohms. Note: The remaining Amplifier Loudspeaker Terminals should not be connected to another Loudspeaker. - Page 10 Meters indicate the Amplifier Power Output of Channels 1-3 METER Switch selects Meter Illumination Auto (On) or Off Front Panel Displays and Switches LEDs indicate when Amplifier Channels 1-3 POWER GUARD circuits activate Standby Power On Indicator POWER Switch Turns AC Power On/Off, or On/Remote...
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Page 11: How To Operate
How to Operate Power On To have the MC303 automatically turn On or Off when an A/V Control Center or Preamplifier turns on or off, rotate the power switch to the REMOTE position. For manual operation, rotate the power switch to the ON or OFF position as desired. -
Page 12: Technical Description
McIntosh Laboratory, the company who introduced the world’s first amplifier that could be called “High Fidelity”, has done it again. The McIntosh engineering staff has cre- ated a power amplifier without compromise, using the most advanced McIntosh circuit design concepts. - Page 13 Refer to figure 12. Every stage of voltage or current amplification must be as linear as possible prior to the use of negative feedback. McIntosh engineers know how to properly design negative feedback circuits so they contribute to the extremely low distortion performance expected from a McIntosh amplifier.
- Page 14 Figure 16 The MC303 incorporates a very large high current Main Power Transformer. Refer to figure 21. It is enclosed in the legendary McIntosh Potted Enclosures and weighs 38 lbs. The super size multiple large main filter capacitors Input Test Signal...
- Page 15 Also, most owners desire one power switch for the whole audio system. The MC303 is equipped with a circuit that provides remote Power Control from a McIntosh A/V Control Center. When the A/V Control Center is switched On, a (+5V) signal operates the power relay in the MC303.
- Page 16 Top View of the MC303...
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Page 17: Photos
Photos Angle View of the MC303 Rear View of the MC303... -
Page 18: Specifications
Specifications Power Output Minimum sine wave continuous average power output per channel, all channels operating: 300 watts into a 2 ohm, 4 ohm or 8 ohm load Output Load Impedance 2, 4 or 8 ohms Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz... -
Page 19: Packing Instruction
If a shipping carton or any of the interior part(s) are needed, please call or write Customer Service Department of McIntosh Labo- ratory. Please see the Part List for the correct part numbers. - 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. 04109800...