McIntosh C2500 Owner's Manual
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McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com
C2500

Tube Preamplifier

Owner's Manual

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Summary of Contents for McIntosh C2500

  • Page 1: Tube Preamplifier

    McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com C2500 Tube Preamplifier Owner’s Manual...
  • Page 2: Safety Instructions

    The lightning flash with arrowhead, within an equilateral The exclamation point within an equilateral triangle is triangle, is intended to alert the user to the presence of intended to alert the user to the presence of important uninsulated “dangerous voltage” within the product’s en- operating and maintenance (servicing) instructions in the closure that may be of sufficient magnitude to constitute literature accompanying the appliance.
  • Page 3: Table Of Contents

    Thank You Customer Service Your decision to own this McIntosh C2500 Tube Pre- If it is determined that your McIntosh product is in Front Panel: amplifier ranks you at the very top among discrimi- need of repair, you can return it to your Dealer. You Front Panel Displays, Controls, Push-buttons and Jack ..............
  • Page 4: General Information

    8. The Remote Control Supplied with the C2500 fiers. A 3.5mm stereo mini Illumination Control 3. The Main AC Power going to the C2500 and any Preamplifier is capable of operating other com- phone plug is used for con- Ground other McIntosh Component(s) should not be applied ponents.
  • Page 5: Introduction

    All control rotation. • Special Power Supply eight Inputs on the C2500 can be matched in level, so • Electronic Tone Controls with Bypass Fully regulated Power Supplies and a special R-Core there are no abrupt changes in volume levels between...
  • Page 6: Dimensions

    Dimensions Dimensions The following dimensions can assist in determining the best location for your C2500. There is additional information on the next page pertaining to installing the C2500 into cabinets. Front View of the C2500 " 44.5cm " " Side View of the C2500 19.4cm...
  • Page 7: Installation

    Installation Installation " 3/16 The C2500 can be placed upright on a table or shelf, 43.66cm standing on its four feet. It also can be custom in- stalled in a piece of furniture or cabinet of your choice. The four feet may be removed from the bottom...
  • Page 8: Connections

    Rear Panel Connections Rear Panel Connections The identification of Rear Panel Connections for the C2500 Tube Preamplifier is located on a separate folded sheet contained in the Owner’s Manual Packet. Refer to separate sheet “Mc2B” for the Rear Panel Connections.
  • Page 9: Connecting Components

    BALanced 2 Input. Data Control Connections: 18. Connect a Control Cable from the C2500 C2500 is located in a cabinet with the doors closed. 7. Connect a Control Cable from the C2500 TUNER PASSTHRU to A/V Control Center Zone ZA The connection instructions below, together with DATA PORTS Jack to the TUNER Data In Jack.
  • Page 10: Remote Control Push-Buttons

    Output 1 Scrolls through the or 2 available C2500 Inputs Scrolls through the Selects one of the eight available C2500 Inputs available Audio Sources Note: Push-buttons whose function is not identified above are for use with other McIntosh Products.
  • Page 11: How To Use The Remote Control

    Press the Up p or Down q VOLUME Push-button to Note: When the C2500 is Off, pressing one of the Source raise or lower the listening volume level. Push-buttons will switch the C2500 On and it will Note: The Record Signals present at REC OUTPUTS are go to that Input.
  • Page 12: Front Panel Displays, Controls, Push-Buttons And Jack

    Tone types of settings Headphones Preamplifier Outputs C2500 ON or OFF signal processor in the Controls, also used to 1 and 2 On or Off (Standby) and resets listen signal path...
  • Page 13: Setup

    V_.__ following steps. select the next Setup Mode Menu item “McIntosh SOURCE INPUT Note: If the C2500 is currently On, proceed to step 2. USB AUDIO, V_.__ Firmware”. Refer to figure (Reassignment) 1. Press the STANDBY/ON Push-button on the 2B and to page 14 for additional information.
  • Page 14: Firmware Version

    The C2500 functionality is controlled by internal soft- The C2500 provides the ability to reassign the non- SETUP: SOURCE INPUT ware that is know as Firmware. The C2500 has two Phono Inputs (High Level) to either one of two Bal- : RCA different Firmwares, one is the “System Firmware”...
  • Page 15: Source Input Renaming

    Setup, con’t Source Input Renaming The C2500 Default Input Names (CD, AUX, DVD, 4. Rotate the INPUT Control until the character “U” Source Input Renaming etc. as indicated on the Front Panel Display) can be starts flashing. Refer to figure 12.
  • Page 16: Input Level Adjustment

    Record any changes made the OUTPUT 2 / MENU ► Push-button until the of the C2500 by performing a Trim Level, refer to to the various inputs from the default settings in Setup Menu item “SETUP: POWER MODE, Auto page 24 for additional information.
  • Page 17: Display Brightness

    Setup Mode is active. Then press the OUTPUT 2 / MENU ► Push-button until the Figure 22 tors on the C2500. Refer to page 4 for additional con- 2. Rotate the VOLUME/ADJUST Control until nection information. Setup Menu item “SETUP: DISPLAY, Brightness: 3”...
  • Page 18: Power Control Triggers 1 And 2

    “SETUP: PASSTHRU, Source: BALANCED 2 Outputs function the same as the MAIN Power Con- tion: SOURCE” appears. Refer to figure 29. trol Jack, switching On/Off with the C2500. Trigger 1 2” appears on the Front Panel Display. Refer to SETUP: TRIG1 OUTPUT figure 26.
  • Page 19: Comm Port Baud Rate

    5. Press the VOLUME UP/DOWN Push-button on is adjustable from 9,600 bits per second to 115,200 Codes are used when the C2500 is used in the same the Remote Control to verify proper operation. bits per second. To change from the default speed of...
  • Page 20: How To Operate The C2500

    Push-button on the Remote Control to switch On the C2500. Refer to figures 50, 51A, 51B, 52 and 53. zero and then increasing to the last used volume set- Trim Functions ting.
  • Page 21 How to Operate the C2500 BALANCE BASS TREBLE Listening balance varies with different program sourc- The Intensity of the Low Frequencies in the music can The Intensity of the High Frequencies in the music can es, room acoustics and listening positions relative to...
  • Page 22 16 for additional information). To make a fine METER ILLUMINATION Notes: 1. For information adjustment to the currently selected Input Source per- The C2500 Front Panel Meter Illumination may be on how the Front form the following: switched On or Off by performing the following: Panel Display 1.
  • Page 23 Note: The USB-D/A Input may also be selected when TUNER : Bypass : BYPASS the C2500 is connected to a computer. Figure 67 Figure 70 2. Select “DIGITAL AUDIO, Display Info: Off” 2. Set the external Processor Loop to be either en- After approximately 5 seconds the Display returns to as indicated on the Front Panel Display.
  • Page 24: Processor Loop

    Processor Loop net 50pF” as indicated on the Front Panel Display. Press the Front Panel PROCESSOR Push-button to nate. Refer to figure 50. The C2500 remembers for Refer to figures 76 and 77. activate the C2500 Processor Loop for the currently each selected Input whether the Tone Control Circuit- selected Input Source.
  • Page 25: Output Meters

    If the Front Panel MUTE Push-button is pressed for Push-buttons to mute the Loudspeakers. figure 81. at least 4 seconds, the C2500 will mute the Audio at Note: The Headphone Output is optimized for imped- the OUTPUTS Connectors, however listening with ances ranging from 20 to 600 ohms.
  • Page 26: Usb Input Operation With A Computer

    Installation and Operation Guide gory” select Preamplifiers Resetting the C2500 to default settings McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com If it becomes desirable to reset all the adjustable set- and under “Model Number”...
  • Page 27: Photos

    Photos...
  • Page 28: Photos

    Photos...
  • Page 29: Specifications

    Phono MM, 80mV Coaxial: 16Bit, 24Bit - 32kHz to 96kHz Phono MM, 4.5mV Phono MC, 8mV USB: 16Bit, 24Bit, 32Bit - 32kHz to 192kHz Phono MC, 0.45mV Power Control and Trigger Output 12VDC, 25mA Tone Controls C2500 Bass and Treble Control Curves...
  • Page 30: Specifications

    220 Volts, 50/60Hz at 50 watts 230 Volts, 50/60Hz at 50 watts 240 Volts, 50/60Hz at 50 watts Standby Power, less than 0.5 watts Note: Refer to the rear panel of the C2500 for the correct voltage. Overall Dimensions Width is 17-1/2 inches (44.45cm) Height is 7-5/8 inches (19.37cm) including feet...
  • Page 31: Packing Instruction

    Customer Service Depart- 404080 #10-7/16” Flat washer ment of McIntosh Laboratory. Refer to page 3. Please see the Part List for the correct part numbers.
  • Page 32 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. 04139400...

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