McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York C22 Tube Preamplifier Owner’s Manual 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.
Important Safety Information is supplied in a separate document “Important Additional Operation Information Guide” Thank You Technical Assistance Table of Contents With the McIntosh C22 Stereophonic Preamplifier, you have invested in a precision instrument that will provide you with many years of enjoyment. Please take a few moments to familiarize yourself with the features and instructions to get the maximum performance from your equipment.
General Information and Cable Information General Information 1. The C22 uses Vacuum Tubes for amplifying the audio signal. The C22 is designed to have only qualified Service Personnel perform any part(s) replacement including all the vacuum tubes. 2. For additional connection information, refer to the owner’s manual(s) for any component(s) connected to the C22 Stereophonic Preamplifier. 3.
Introduction and Performance Features Introduction • Variable Rate Volume and Balance Control The C22 Preamplifier’s Volume and Balance Control Circuitry provides an ideal rate of change with control rotation. • Special Power Supply Fully regulated Power Supplies and a special R-Core Power Transformer ensure stable noise free operation even though the power line varies. • Tone Controls with Bypass The C22 allows for bypassing the Bass and Treble Tone Circuitry.
Dimensions Dimensions The following dimensions can assist in determining the best location for your C22. Front View of the C22 17-1/2" 44.5cm 5-3/8" 13.7cm 6" 15.2cm Side View of the C22 15-3/4" 40cm 5/8" 1.6cm 14-1/2" 36.8cm 3/16" 0.5cm Rear View of the C22 17-1/8" 43.5cm 4-13/16" 12.2cm 13/16" 2.1cm 2" 4-5/8" 5.1cm 10-9/16" 26.8cm 1-15/16" 4.9cm 11.8cm 13-1/4" 33.
Installation Installation The C22 can be placed upright on a table or 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 of the C22 when it is custom installed as outlined below. The four feet together with the mounting screws should be retained for possible future use if the C22 is removed from the custom installation and used free standing.
Rear Panel Connections OUTPUTS 1 and 2 send signals to Power Amplifiers and are switched On/Off with the Front Panel OUTPUT 1 and 2 Switches OUTput 1 and OUTput 2 send Turn-On Signals to McIntosh components and are controlled by the C22 Front Panel OUT 1 and OUT 2 Switches POWER CONTROL MAIN Outputs send Turn-On Signals to McIntosh Components when the C22 is switched On INPUTS BALanced 1 and 2 accept high level program source signals DATA PORTS send signals to McIntosh Source Components to allow control
How to Connect the C22 How to Connect the C22 The C22 has the ability to automatically switch power On/Off to McIntosh Source Components via the Power Control connections. The Data Port Connections allow for the remote operation of basic functions using the C22 Remote Control. The connection instructions below, together with the C22 Input and Output Connection Diagrams located on the separate folded sheet “Mc1A/1B”, are an example of a typical audio system.
HR085 Remote Control Push-Buttons LEDs illuminate during the time a remote command is sent and when programming the remote control Select the DEVICE to issue a remote control command to Press to Power the C22 On Use to select tuner presets, direct access an AM/FM Station Frequency, disc tracks or any numbered operation Press to Power the C22 Off Direct access to stored Tuner PRESETS when used with the numeric Push-buttons (0 thru 9) Selects AM Tuner Operating Functions and Track Selection on certain McInt
How to use the HR085 Remote Control How to use the Remote Control The supplied C22 Remote Control (HR085) is capable of directly controlling the functions of contemporary McIntosh Source Components connected to the C22 via the Data Ports. Notes: 1. If at any time the C22 seems unresponsive to the HR085 Remote Control Commands, press the DEVICE Push-button to select first. 2.
Front Panel Displays, Controls, Switches and Jack IR Sensor receives commands from a Remote Control INPUT SELECTOR Control selects the desired audio signals for listening and recording OUTPUTS 1 and 2 switches allow the C22 to switch Power Control and Audio to two separate Power Amplifiers Connection for low impedance dynamic headphones, for private listening BASS Control provides 10dB boost or cut with a center flat position TREBLE Control provides 10dB boost or cut with a center flat position STANDB
How to Operate How to Operate Power On and Off The Red LED above the STANDBY/ON Push-button lights to indicate the C22 is in Standby mode. Press the STANDBY/ON Push-button on the Front Panel or the (Green) Push-button on the Remote Control. The C22 will go through a TUBE WARMUP (approximately 16 seconds) with the Tubes glowing an amber color. The LEDs around the INPUT and VOLUME CONTROLS also become Rotational Active during TUBE WARMUP.
How to Operate, con’t How to Operate, con’t Headphones Jack Connect a pair of dynamic headphones with a 1/4 inch (6.3mm) stereo phone type plug to the Headphones Jack for private listening. HXD Mode When Headphones are connected to the Front Panel Headphone Jack, place the HXD® switch to the ON position to activate the HXD® Circuitry. To deactivate HXD® place the switch in the OFF position. position by holding it in for fifteen seconds and then releasing the switch.
Specifications Specifications Frequency Response +0, -0.5dB from 20Hz to 20,000Hz +0, -3dB from 15Hz to 100,000Hz Tone Controls Bass Control ± 10dB @20Hz Treble Control ± 10dB @10,000Hz Total Harmonic Distortion 0.08% from 20Hz to 20,000Hz Voltage Gain High Level to Output 1 and 2: 15dB Phono MM to Output 1 and 2: 40dB Phono MC to Output 1 and 2: 60dB Rated Output (Output 1 and 2) 2.
Packing Instructions Packing Instructions In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as shown below. It is very important that the four plastic feet are attached to the bottom of the equipment. This will ensure the proper equipment location on the bottom pad. Failure to do this will result in shipping damage. Use the original shipping carton and interior parts only if they are all in good serviceable condition.
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.
