McIntosh MC24O Owner's Manual
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McIntosh MC24O Owner's Manual

McIntosh MC24O Owner's Manual

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OWNER'S MANUAL
STEREO
POWER
AMPLIFIER
CONTENTS
MC24O
1
1
4
5
5
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6
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Summary of Contents for McIntosh MC24O

  • Page 1: Table Of Contents

    STEREO POWER MC24O AMPLIFIER GENERAL DESCRIPTION TECHNICAL DESCRIPTION PANEL FACILITIES INSTALLATION CONNECTIONS Input—Stereo Input—Twin Amp Input—Mono Output—Stereo or Twin Amp Output—Mono CONTENTS Line Output—Stereo or Twin Amp Line Output—Mono AC Power OPERATION ADJUSTMENTS GUARANTEE OWNER'S MANUAL...

  • Page 3: General Description

    MC240 STEREO POWER AMPLIFIER GENERAL DESCRIPTION Over one million watts of amplifier output Long life, flexibility, highest quality con- power capacity have been manufactured by struction are characteristic designs in every Mclntosh since 1947. In this 1,000,000watts Mclntosh instrument. Wide electrical and of audio power there are less than 10 watts of thermal margins of safety for all components distortion capacity and less than 1/100 watt...
  • Page 4 In the Mclntosh Unity Coupled circuit one distortion, reduces their internal generator of the bifilar primary windings is connected resistance, and reduces their balance through the power supply to the plate and requirements. The Mclntosh circuit in cathode of one of the output tubes. The other reality perfects push-pull high efficiency bifilar primary winding is similarly connected output circuits.
  • Page 5 Intermodulation Distortion: (Center tap internally grounded) 140 Less than 0.5% for any combination of volts frequencies from 20 cycles through (One side internally grounded) 70.7 20,000 cycles if instantaneous peak volts power is below twice the rated power. Mono: Phase Shift: (Isolated from ground) 25 volts Less than +6°...

  • Page 6: Panel Facilities

    PANEL FACILITIES Fig. 3—The end panel of the MC240 showing all input and output facilities. OUTPUT INPUT The input of the MC240 has a three posi- The two barrier terminal strips marked tion lever switch to permit the amplifier to be OUTPUT provide stereo connections for the used in any one of three ways: normal speaker impedances of 4 ohms,...

  • Page 7: Installation

    system. The outlet will provide a maximum of FUSE The MC240 uses a 3.2 ampere slo-blo 300 watts of power. The AC outlet is not fused. type fuse. The auxiliary AC socket is not LINE VOLTAGE fused. The MC240 operates on any line voltages between 105 volts and 130 volts, 50 cycles to 60 cycles.

  • Page 8: Input-Mono

    INPUT-MONO OUTPUT-MONOPHONIC When the MC240 is to operate as an 80 The shielded cable from the program watt monophonic amplifier, the outputs of source is plugged into the jack marked the two channels combine to produce a MONO INPUT. -single 80 watt output. This chart lists the proper connections and interconnections for OUTPUT-STEREO OR TWIN AMPLIFIERS monophonic operation.

  • Page 9: Line Output-Mono

    The 62 ohm and the 70.7 volt connec- For all applications using 600 ohms use Class I wiring if the installation must meet tions are the same. To connect for 62 ohms or 70.7 volts solder one of the leads to pin the requirements of the National Electrical Code.

  • Page 10: Guarantee

    To balance a stereo system using the marked MONO INPUT. This jack is located TWIN AMP input position use a monophonic below the right control knob marked GAIN. signal from the program source. A mono- The input sensitivity in this position is 0.5 phonic signal supplies the same voltage to volt.
  • Page 12 LABORATORY INC. 2 CHAMBERS STREET, BINGHAMTON, N. Y. Made in U.S.A. Phone-Area Code 607 723 5491 PRINTED IN U.S.A. 1M 038-002...

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