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McIntosh C26 Owner's Manual

Solid state stereo preamplifier
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THE MclNTOSH C 26 SOLID STATE STEREO PREAMPLIFIER
READING TIME: 32 Minutes
Price $1.25

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  Summary of Contents for McIntosh C26

  • Page 1 THE MclNTOSH C 26 SOLID STATE STEREO PREAMPLIFIER READING TIME: 32 Minutes Price $1.25...
  • Page 3: Table Of Contents

    Your C 26 stereo preamplifier will give you many years of pleasant CONTENTS Service Contract ... 1 and satisfactory performance. Installation ... 2, 3 If you have any questions concerning this instrument, please contact: How to Connect ... 4, 5, 6 CUSTOMER SERVICE What the Controls Do ...
  • Page 4: Installation

    To prepare the C 26 for installation remove the plastic protective covering. Turn the C 26 upside down so that it rests on its top on the shipping pallet. Remove the four plastic feet fastened to the bottom of the chassis. Next, place the mounting brackets, the parts bag and the mounting template at hand.
  • Page 5 instrument in until the front panel is against the cabinet panel. At the bottom front corners of the PANLOC instruments are the PANLOC buttons. Depressing the PANLOC buttons will lock the in- strument firmly in the installation. Depressing the PANLOC buttons a second time (as with a ball- point pen) will release the instrument.
  • Page 6 How to Connect CONNECTING A RECORD PLAYER TO PHONO 1 Connect the cable from the "left" channel of the record player into the "L" PHONO 1 input jack. Connect the cable from the "right" channel of the record player into the "R" PHONO 1 jack. PHONO 2 is provided for the use of a second record player.
  • Page 9: What The Controls Do

    TAPE MONITOR SWITCH The C26 TAPE MONITOR switch makes it pos- sible to instantaneously compare recorded material with the source signal from either of two tape recorders used with the C 26. The recorders used with the C 26 should have separate record and...
  • Page 10: Using The Front Panel Controls

    Example: Connect the output of recorder 1 to SPEAKER SWITCHES TAPE 1 input on the C 26. Connect the TAPE 1 To switch the main and remote stereo speakers output on the C 26 to the input of recorder 1. In using the pushbuttons on the front panel, the the same way, connect the output of recorder 2 to power amplifier output leads must be connected...
  • Page 11 vision set or other source that has output of 0.25 volts or more. In the AUX position the gain is 20 dB to the MAIN outputs, 0 dB to the TAPE outputs. The input impedance is 250,000 ohms. TAPE 1: Connects the output from a complete tape recorder to the high level input stage of the C 26.
  • Page 12: Using The Pushbuttons

    Using the Pushbuttons SPEAKER When the output of the power amplifier and the speakers have been connected to the proper push connecters on the back panel, the pushbuttons The C 26 is designed to be used with two com- turn the speakers ON or OFF. (See Diagram Page plete tape recorders.
  • Page 13: Adjusting The Top Panel Controls

    Adjusting the 2. Turn the MODE SELECTOR switch to STEREO or MONO, depending on the pro- gram on the tape. Top Panel Controls 3. Adjust the VOLUME control to the desired volume. Two tape recorders can be used with the C 26. PHASE —The PHASE is a two-position switch Connect a three head tape recorder to TAPE 1 that reverses the phase in the left channel.
  • Page 14: Performance Limits

    Performance Limits POWER REQUIREMENT 120 volts, 50/60 Hz, 15 watts Performance Limits are the maximum deviation FACILITIES AND FEATURES from perfection permitted for a Mclntosh instru- ment. We promise you that your C 26 must be capable of performance at or exceeding these limits or you get your money back.
  • Page 15 SPEAKER Main — Switch the MAIN loudspeaker system ON or OFF without affecting the performance of REMOTE speakers. Remote — Switch REMOTE loudspeaker system ON or OFF without affecting the per- formance of MAIN speakers. HEADPHONE JACK The output of the power amplifiers must be properly connected to the C 26 back panel for program material to be available at the HEAD- PHONE jack.
  • Page 16: Performance Charts

    LOW AND HIGH FREQUENCY FILTER CHARACTERISTICS Performance Charts 1000 10000 20000 PHONO EQUALIZATION CHARACTERISTIC ( R I A A ) FREQUENCY IN HERTZ 10000 20000 1000 BASS AND TREBLE TONE CONTROL CHARACTERISTICS FREQUENCY IN HERTZ 1000 10000 20000 LOUDNESS CONTROL CHARACTERISTICS FREQUENCY IN HERTZ 1000 10000...
  • Page 17: Technical Description

    distortion and to provide the low impedance needed to drive the highly selective filter networks which follow. The filter networks are switch controlled. The high-frequency filter network reduces treble re- sponse above 5,000 Hz. The low-frequency filter reduces bass response below 50 Hz. The slope of the filters is selected for maximum rejection of objectionable noises.
  • Page 18: Block Diagram

    Block Diagram...
  • Page 20 MclNTOSH LABORATORY INC. 2 CHAMBERS ST., BINGHAMTON, N. Y. 13903 607-723-3512 Design and Price subject to change without notice. Printed in U.S.A. 038-867 BE032003...