McIntosh C2300 audio amplifier
Contents
1. Dimensions 36 83cm 6 9 16 3 16 46 670m 0 48cm 2 5 08cm Installation Installation The C2300 can be placed upright on a table or shelf 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 of the C2300 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 C2300 is removed from the custom installation and used free standing The required panel cutout ventila tion cutout and unit dimensions are shown Always provide adequate ventilation for your C2300 Cool operation ensures the longest possible operating life for any electronic instrument Do not install the C2300 directly above a heat generating component such as a high powered amplifier If all the components are installed in a single cabinet a quiet running ventilation fan can be a definite asset in maintaining all the system components at the coolest possible operating temperature A custom cabinet installation should provide the following minimum spacing dimensions for cool operation Allow at least 6 inches 15 24cm above the top 2 inches 5 08cm below the bottom and 1 inch 2 54cm on each side of the Tube Preamplifier so that airflow is not obstructed Allow 19 1 2 inches 49 53cm depth behind the front panel Allow 1 1 8 inch 2 9cm in front of the2. Ad justments The Trim Selections include Balance Bass Treble Tone Bypass Input Level Matching and Meter Illumination The Trim Settings are stored in memory independently for each Input Source Selected the only exception being Meter Illumination setting of On or Off which is the same for all inputs BALANCE Listening balance varies with different program sourc es room acoustics and listening positions relative to the Loudspeakers Use the Balance Trim Function as needed to achieve approximately equal listening vol go 50 40 30 20 10 ee OUTPUT LEVEL IN dB VOLUME Q STANDBY ON TRIM ADJUST SELECT2 SETUP MUTE 1 OUTPUT 2 Figure 14 16 ume levels in each Loudspeaker To adjust the Balance perform the following 1 Rotate the Front Panel TRIM SELECT Control or press the TRIM Push button on the Remote Con trol until BALANCE 00 appears on the Front Panel Alphanumeric Display 2 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to emphasize the Left Channel or the Right Channel Refer to figure 15 Figure 15 The Front Panel Display indicates the Balance changes in steps from 0 to 107 After approximately 3 sec onds the Alphanumeric Display returns to indicate the Source Selection and Volume Level When the Balance is set to favor either left or r ght channel the volume number indicated will have a lt or gt symbol on either side of the number R
3. Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until the word DIS PLAY 7 appears 3 Rotate the SELECT 2 Control until the Front Panel Alphanumeric Display indicates Display 3 4 Press the SETUP Push button to exit the Setup Mode Power Control Triggers The OUTPUT 1 A and OUTPUT 2 B Power Control Outputs are reassignable to activate only when a given Input is selected In the following example the Power Control OUTPUT 1 A Jack will be set to function as TRIGGER A for the DVD Input 1 Press the SETUP Push button to access the Setup Mode Setup con t 2 Rotate the MENU Control until TRIG TUNER gt appears on the Front Panel Alphanumeric Display Refer to figure 8 Figure 8 3 Rotate the SELECT 1 Control until the display indicates TRIG DVD gt 4 Rotate the SELECT 2 Control until the display indicates TRIG DVD gt A Refer to figure 9 Figure 9 5 Press the SETUP Push button to exit the Setup Mode Accessory Power Control _ SaaS aS ee See eee The ACC C Power Control Output is reassignable from the default setting of going ON OFF with the C2300 Main to being controlled by the Remote Control ACC ON OFF Push buttons To reassign it perform the following 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until ACC lt C gt MAIN appears on the Front Panel Alphanumeric Display 3 Rotate the S
4. SELECT2 MENU HEADPHONES TONE BYPASS REC MONITOR OUTPUT 2 0 Connection for low im MONO with in SETUP Mode Push button OUTPUTS 1 and 2 Push buttons pedance dynamic head dicator combines with indicator allows the with indicators allow the C2300 phones with 1 4 0 64cm the Left and Right changing of the default to switch Power Control and Au stereo phone type plug Channel signals for settings for Inputs Levels dio to two separate Stereo Power for private listening Monophonic Sound Special Functions and the Amplifiers Display TONE BYPASS with REC MONITOR Push but MUTE Push button STANDBY ON Push button indicator when act vated ton with indicator allows with indicator switches the C2300 ON or the audio signal bypass listening to the playback of activates different OFF Standby and resets the es the Tone Controls REC SRVR Source while Muting Modes microprocessors the recording is in process 10 Setup How to Operate the Setup Modes Your McIntosh C2300 has been factory configured for default operating settings that will allow immediate enjoyment of superb audio without the need for fur ther adjustments If you wish to make changes to the factory default settings a Setup Feature is provided to customize the operating settings using the Front Panel Alphanumeric Display Refer to the C2300 Front Panel Illustration on the previous page while performing the following steps Note If the C2300 is currentl
5. Sensitivity for rated output High Level 450mV unbalanced 900mV balanced Phono MM 4 5mV Phono MC 0 45mV Signal To Noise Ratio A Weighted High Level 93dB Input Impedance High Level 20K ohms unbalanced 40k ohms bal anced Phono MM 47K ohms 50 to 750pF in 50pF steps Phono MC 25 50 100 200 500 or 1 000 ohms 100pF Maximum Input Signal High Level 5V Unbalanced 10V Balanced Phono MM 50mV Phono MC 5mV Voltage Gain High Level to SRVR REC Output 0dB High Level to Main Output 15dB Phono MM to Record Output 40dB Phono MC to Record Output 60dB Output Impedance 220 ohms Specifications Tube Compliment MM Phono Circuitry 2 I2AX7A MC Phono Circuitry 2 I2AX7A High Level Circuitry 2 12AX7A Power Requirements 100 Volts 50 60Hz at 75 watts 110 Volts 50 60Hz at 75 watts 120 Volts 50 60Hz at 75 watts 220 Volts 50 60Hz at 75 watts 230 Volts 50 60Hz at 75 watts 240 Volts 50 60Hz at 75 watts Standby Power less than 2 watts Note Refer to the rear panel of the C2300 for the correct voltage Overall Dimensions Width is 17 1 2 inches 44 45cm Height 1s7 5 8 inches 19 37cm including feet Depth is 18 inches 45 72cm including the Front Panel Knobs and Cables Weight 29 5 pounds 13 41 kg net 44 9 pounds 20 41 kg in shipping carton Shipping Carton Dimensions Width is 27 inches 68 6cm Height is 14 inches 35 6cm Depth is 25 i
6. mounting panel for knob clearance Be sure to cut out a ventilation hole in the mounting shelf according to the dimensions in the drawing 17 3 16 43 66cm C2300 Front Panel A O ER 6 9 16 Custom Cabinet Cutout QO a 16 67cm HEADPHONES SELECTABLE T REC MONITOR SETUP MUTE 14 OUTPUT STANDBY ON Opening C2300 Side View in Custom Cabinet Cutout Opening for Custom Mounting a for Ventilation Support Shelf C2300 Bottom View in Custom Cabinet 1 1 16 Note Center the cutout Horizontally 2 70cm on the unit For purposes of clarity the above illustration is not drawn to scale Chassis a em 4 a Spacers 10 16cm T 1 2 49 05cm Cutout 15 38 2 l 38 10cm el Ventilation Bam 12 516 ___ 31 27cm Ik Rear Panel Connections Rear Panel Connections The identification of Rear Panel Connections for the C2300 Audio Preamplifier is located on a separate folded sheet contained in the Owner s Manual Packet Refer to separate sheet Mc2A for the Rear Panel Connections C2300 Tube Preamplifer Rear Panel C2300 TUBE PREAMPLIFIER McINTOSH LABORATORY INC BINGHAMTON NY 13903 MADE IN USA SERIAL C NUMBER 8 7 3 SRVR CDR TUNER Cb DIA DVD A CAUTION A ER e ER nex Serge O EC SZ SZ SZ SZ SZ CAUTIO N FOR CONTINUED PROTECTION AGAINST FIRE HA
7. special ultra low noise circuitry with out the need for a step up transformer It offers the ability to change the input impedance from 25 ohms to 1000 ohms in six steps to match a wide variety of Moving Coil Cartridges The C2300 utilizes a double filtered power supply design just for the Moving Coil Preamplifier The second compensation amplifier stage uses 12A X7A tubes Its input stage has been optimized for low noise and low distortion performance With high open loop gain negative feedback is used around the Phono Amplifier to further reduce noise distortion and has a very wide dynamic range The feedback network also provides precision RIAA frequency compensation The output is buffered by a unity gain amplifier for low output impedance The MM Phono Amplifier uses 12A X7A tubes Its input stage has been optimized for low noise and low distortion performance It offers the ability to change the load capacitance from 50 pF to 750 pF in 50 pF steps to match a wide variety of Moving Magnet Car tridges With high open loop gain negative feedback is used around the Phono Amplifier to further reduce noise distortion and has a very wide dynamic range The feedback network also provides precision RIAA frequency compensation The output is buffered by a unity gain amplifier for low output impedance Tone Control Circuitry A control attenuator inserts a series tuned circuit into either the feedback or input section of the tone amp
8. the SELECT 1 TRIM SELECT Control for TUN and rotate the SELECT 2 TRIM ADJUST for 0 0 Trim Level Adjustment con t 4 Rotate the SELECT 1 Control or use the Remote Control lt INPUT push button until the display indicates TRIM CD 0 0 5 Rotate the SELECT 2 Control or use the Remote Control LEVEL V or A Push buttons until Lis tening Volume Level of the CD Input is the same as the Tuner Volume Level The figure 5 illustra tion use a 0B cE in ut ah Level Figure 5 6 Rotate the SELECT 1 Control until the name of the next Input to be adjusted is displayed 7 Repeat steps 5 and 6 until all the Inputs with sources connected to the C2300 have the same relative volume levels when switching between them Record any changes made to the various in puts from the default settings in the Input Source Settings chart below 8 Press the SETUP Push button to exit the Setup Mode au Source Settings 12 Re Title Inputs IEE The C2300 provides the ability to change the default Input Titles to match the components in your system In the following example the CDR Input will be re named and appear as AUX on the Front Panel Alpha numeric Display Notes 1 One of the high level Inputs may be renamed to AUX or swiched Off If any input is switched Off its name will no longer appear on the Front Panel Alphanumeric Display when using the INPUT Control nor is it accessible with the Remote Control
9. them 4 Up to two Sensors can be wired in parallel for Re mote Control of the C2300 from other rooms 5 Balanced and Unbalanced Inputs and Outputs can be mixed For example you may connect signal sources to Unbalanced Inputs and send signals from the Balanced Outputs You can also use Bal anced and Unbalanced Outputs simultaneously connected to different Power Amplifiers 6 The Remote Control Supplied with the C2300 Tube Preamplifier is capable of operating other com ponents For additional information go to www mcintoshlabs com pzd 7 When discarding the unit comply with men local rules or regulations Batteries should eS never be thrown away or incinerated but disposed of in accordance with the local regulations concerning battery disposal General Information and Connector Information 8 For additional information on the C2300 and other McIntosh Products please visit the McIntosh Web Site at www mcintoshlabs com Connector and Cable Information XLR Connectors Below is the Pin configuration for the XLR Balanced Input and Output Connectors on the C2300 Refer to the diagrams for connec PIN2 PIN 1 PIN 1 PIN 2 tions PIN 1 Shield Ground PIN 2 Output PIN 3 Output Power Control and Trigger Connectors The C2300 Power Control Out Trigger and Pass Thru Output Jacks send Power On Main Output Jack Off Signals 5 volt O volt when connected to other Power 7 ontro McIntosh Component
10. 2 Connect a Control Cable from the McIntosh SACD CD Player Power Control Out jack to the McIntosh D A Converter Power Control In Jack Connect a Control Cable from the McIntosh D A Converter Power Control Out jack to the McIntosh Tuner Power Control In Jack 4 Connect a Control Cable from the McIntosh Tuner Power Control Out jack to the McIntosh Music Server Power Control In Jack Connect a Control Cable from the C2300 POWER CONTROL MAIN Out jack to the McIntosh Pow er Amplifier Left Channel Power Control In Jack Connect a Control Cable from the Left Channel Power Amplifier Power Control Out to the Right Channel Power Amplifier Power Control In Jack W 6 Optionally connect a Control Cable from the C2300 POWER CONTROL OUTPUT 1 jack to the McIntosh Power Amplifier Secondary Room Power Control In Jack 7 Connect any additional McIntosh Components in a similar manner as outlined in steps 1 thru 4 Data Control Connections 8 Connect a Control Cable from the C2300 TUNER DATA PORTS Jack to the McIntosh TUNER Data In Jack 9 Connect a Control Cable from the C2300 CD DATA PORT Jack to the McIntosh SACD CD Player Data In jack 10 Connect a Control Cable from the C2300 SRVR DATA PORT Jack to the McIntosh Music Server Data In jack 11 Connect a Control Cable from the C2300 D A DATA PORT Jack to the McIntosh D A Converter Data In jack 12 Connect any additional McIntosh Components in a similar manner as ou
11. 2 When a high level input is switched Off its name will become available to the remaining high level inputs 3 The Phono MC and Phono MM Inputs are designed for connection of a turntable only and thus the title is not changeable However the Phono Input may be switched Off 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until INPUT 3 XTUN appears on the Front Panel Alphanumeric Display 3 Rotate the SELECT 1 Control until INPUT 7 XCDR appears on the Front Panel Alphanumeric Display Refer to figure 6 V WT ht OW Mo Mi Mile Mi JA Figure 6 4 Rotate the SELECT 2 Control until the Front Panel Alphanumeric Display indicates INPUT 7 AUX Refer to figure 7 Figure 7 5 Press the SETUP Push button to exit the Setup Mode Meter Illumination On Off ss SS SSS SS SS Se The Front Panel Meter Illumination may be switched On or Off Follow the steps below to switch the Meter Illumination Off 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until the words ME TER ON appears 3 Rotate the SELECT 2 Control until the Front Panel Alphanumeric Display indicates METER OFF 4 Press the SETUP Push button to exit the Setup Mode Display Brightness TFT a a The Front Panel Alphanumeric DISPLAY Brightness may be varied from a setting of 1 Dim to 7 Bright Follow the steps below for reducing the Display Brightness 1
12. 26 Output 1 and 2 Press the Front Panel OUTPUT 1 OUTPUT 2 Push button or use the Remote Control and press the 2nd Push button followed by the OUTPUT 1 OUTPUT 2 Push button to send audio to separate Power Am plifiers connected to the rear panel OUTPUTS 1 or 2 Jacks It also activates the POWER CONTROL OUTPUT 1 OUTPUT 2 Jacks on the rear panel of the C2300 To stop the Audio and Power Control Signals from going to the separate Power Amplifiers press the same Push button s a second time Headphones Jack Connect a pair of dynamic headphones with a 1 4 0 635cm stereo phone type plug to the Headphones Jack for private listening Output Meters The C2300 s Output Meters indicate the Output Voltage available at the MAIN and OUTPUT 1 amp 2 Jacks to drive Power Amplifiers Refer to figure 27 OUTPUT LEVEL IN dB Figure 27 The Meters are calibrated in dB decibels and respond to all the peaks contained in the musical informa tion They indicate to an accuracy of at least 95 of a single cycle from a 2000Hz tone burst The Meter Electronic Circuitry Time Stretches the Meter Drive Signal so the Meter Pointer pauses just long enough for the human eye to see it and is fol lowed by a moderate decay rate How To Make A Recording 1 Select the Source Input Signal you wish to record 2 Adjust the record level using the recorder volume control and proceed with the recording process 3 To listen to the playbac
13. Balanced Cables from the McIntosh MX Series A V Control Center Front Left and Right Channel Outputs to the CDR Input Jacks 24 Connect a Control Cable from the C2300 PASSTHRU to McIntosh MX Series A V Control Center Zone A Power Control Output Ground Connections 25 Connect the Gound Cable coming from the Turn table to the C2300 GND Binding Post AC Power Cords Connections 26 Connect the C2300 and any remaining compo nents AC Power Cords to a live AC outlet as illustrated 2 Front Panel Displays Controls Push buttons and Jack Me INPUT Control selects IR Sensor receives DISPLAY indicates the Sources Volume METER indicates the the desired audio signals commands from a other Audio Settings Operational Func Preamplifier s Right for listening and record Remote Control tions and Setup Mode Settings Channel relative Output ing It is also used in the Level setup mode for various METER indicates TRIM SELECT allows selection TRIM ADJUST allows VOLUME Control ad functions the Preamplifier s of various types of audio settings adjustment of various types justs the listening level Left Channel relative It is also used in the setup mode audio settings It is also for both channels Output Level for various functions used in the setup mode for various functions Melntosh OUTPUT LEYEL IN dB C2300 TUBE PREAMPLIFIER OUTPUT LEVEL IN dB INPUT TRIM SELECT TRIM ADJUST VOLUME p INPUT VOLUME 5 SELECT 1
14. ELECT 2 Control until the display indicates ACC lt C gt ON Refer to figure 10 hm DM yo rt Ww Figure 10 4 Press the SETUP Push button to exit the Setup Mode Tube LED EEE SE a e PER BEE To swich Off the Tube LED green illumination per form the following 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until TUBE LED ON appears on the Front Panel Alphanumeric Display 3 Rotate the SELECT 2 Control until the display indicates TUBE LED OFF 4 Press the SETUP Push button to exit the Setup Mode Passthru ea a aa a a S The C2300 can be part of a Multichannel Sound Sys tem for SACD DVD Audio and Home Theater The Right and Left Front Channels from a McIntosh A V Control Center or Surround Decoder can Passthru the C2300 and onto its associated Power Amplifier s The Setup Mode allows the activation of the Passthru Mode and the Selection of the C2300 Input Input numbers 3 8 on the Rear Panel that will be used for the Right and Left Front Channels In the example below the Right and Left Front Channels from the Multichannel Processor Decoder will be connected to the CDR 7 Input Jacks on the C2300 Refer to page 9 for additional connection information 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU Control until PASSTHRU OFF appears on the Front Panel Alphanumeric Display 3 Rotate the SELECT 2 Control u
15. Fluorescent Display The Multifunction Front Panel Display indicates the Source Selection Volume and Balance Levels Setup Mode Selections and Adjustments are also displayed The display intensity is adjustable e Precision Parts Only the finest precision 1 tolerance resistors are used throughout e Low Distortion Distortion levels of all types are less than 0 08 Mu sic is amplified with total transparency and accuracy e Passthru Mode The Automatic Passthru Mode allows the C2300 to become part of a Multichannel Sound System for DVD Audio SACD and Home Theater Movies e Output Switching Front panel Output Push buttons control two Switched Outputs that allow sending signals to two separate Power Amplifiers e Remote Control with External Sensor Input The Remote Control provides control of the C2300 operating functions and any McIntosh Source Com ponents connected to it Enjoy your McIntosh System from other rooms in your home by connecting exter nal sensors e Power Control Output and Trigger Assignment A Power Control connection for convenient Turn On of McIntosh Power Amplifiers Source Components and Accessories 1s included Two of the Power Con trol Ouputs may be assigned to activate when a given Input is selected e 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 e Extruded Side Panels The sides
16. LECT Control or press the TRIM Push button on the Remote Control until PHMM PF or PHMC __ _ OHM appears on the Front Panel Alphanumeric Display Refer to figures 22 and 23 Figure 23 60 50 40 30 20 10 Os ey OUTPUT LEVEL IN dB TRIM SELECT SELECT 1 MENU HEADPHONES TONE BYPASS MONO REC MONITOR G o C2300 TUBE PREAMPLIFIER 3 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to select from the available values of cartridge loading Ohms for a Moving Coil Cartridge or Capacitance for a Mov ing Magnet Cartridge that comes closest to the Cartridge Makers recommended value After approximately 3 seconds the Alphanumeric Display returns to the indicate the Source Selection and Volume Level Tone Bypass Press the TONE BYPASS Push button to Bypass the Tone Control Circuitry thus providing a flat frequen cy response If the AUTOTONE circuit is set to the On position in Setup Mode the C2300 will remember for each input whether the Tone Bypass is active The Front Panel LED will illuminate indicating the BY PASS Mode is active 60 50 40 30 20 10 Os OUTPUT LEVEL IN dB TRIM ADJUST VOLUME VOLUME SELECT2 MUTE 1 OUTPUT 2 STANDBY ON Oe Figure 14 18 Mono Press the Front Panel MONO Push button or the MODE Push button on the Remote Control to com bine left and right stereo signals to a Monophonic Sig nal The Front Pa
17. McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com 60 50 40 30 a 4 L t Os dB dB OUTPUT LEVEL C ar E f OUTPUT LEVEL The lightning flash with arrowhead within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s en closure that may be of sufficient magnitude to constitute a risk of electric shock to persons SYN MN BW NY e WARNING TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE IMPORTANT SAFETY INSTRUCTIONS PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instruc tions Do not install near any heat sources such as radiators heat registers stoves or other appa ratus including amplifiers that produce heat Do not defeat the safety purpose of the polar ized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a 10 11 19 13 14 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN A A AV S RISQUE DE CHOC ELECTRIQUE NE PAS OU
18. VRIR NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manu facturer or sold with the appa ratus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service person nel Servicing is required when the apparatus has been damaged in any way such as power EN The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance 15 16 Li 18 19 To prevent the risk of electric shock do not remove cover or back No user serviceable parts inside supply cord or plug 1s damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed t
19. ZARD REPLACE ONLY WITH SAME TYPE AND RATING FUSE IN IN f N Yj f Y AVIS RISQUE DE CHOC ELECTRIQUE NE PAS R 0 R OUVRIR REMPLACER PAR UN FUSIBLE DE MEME TYPE Ne Ne NY NY NY NY REC AMPERAGE ET VOLTAGE 120V c 50 60Hz 75 WATTS T 500mAL 250V SLO BLO m POWER CONTROL EXT DATA PORTS SENSOR PASS 8 7 6 5 4 3 SRVR CDR CD D A DVD TUNER 0000 6066 6 6 a TRIGGER mmm Connecting Components Connecting Components The C2300 has the ability to automatically switch power On Off to McIntosh Source Components via the Power Control connections The Data Port Connec tions allow for the remote operation of basic functions using the C2300 Remote Control With an external sensor connected to the C2300 remote control opera tion of the system is possible from another room and or when the C2300 is located in a cabinet with the doors closed The connection instructions below together with the C2300 Input and Output Connection Diagrams located on the separate folded sheets MclA 1B and Mc2A 2B is an example of a typical audio system Your system may vary from this however the actual components would be connected in a similar manner For additional information refer to Connector and Cable Information on page 4 Power Control Connections 1 Connect a Control Cable from the C2300 POWER CONTROL ACC C Jack to the Power Control In on the McIntosh SACD CD Player
20. cates the Treble changes in steps from 12dB to 12dB After approximately 3 seconds the Alphanumeric Display returns to the indicate the Source Selection and Volume Level TONE ENABLE BY PASS With the Tone Bypass active the Bass and Treble Settings for the currently selected Input Source are electronicaly bypassed When the Tone Bypass is switched Off the previous settings for Bass and Treble will be restored To activate Tone Bypass perform the following 1 Rotate the Front Panel TRIM SELECT Control or press the TRIM Push button on the Remote Con trol until TONE BYPASS appears on the Front Panel Alphanumeric Display 2 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to activate the Tone Bypass or deactivate the Tone Bypass Refer to figure 19 m A a L N BIN Kifo pi Figure 19 After approximately 3 seconds the Alphanumeric Display returns to indicate the Source Selection and Volume Level TRIM LEVEL The Trim Level adjustments allows for making fine adjustments to the previously performed Trim Level Adjustments in the Setup Section of this Owner s Manual on page 11 To make fine adjustment to the currently selected Input Source perform the following 1 Rotate the TRIM SELECT Control or press the TRIM Push button on the Remote Control until LEVEL _ appears on the Front Panel Alpha numeric Display Refer to figure 20 Figure 20 2 Rotate the TRIM ADJUST Control or
21. efer to figure 16 To Figure 16 verify the Balance setting without changing it use the TRIM SELECT Control or TRIM Push button and select Balance BASS The Intensity of the Low Frequencies in the music can be increased or decreased by using the Trim Select and Trim Adjust Controls To make adjustment per form the following 1 Rotate the Front Panel TRIM SELECT Control or press the TRIM Push button on the Remote Con trol until BASS __ appears on the Front Panel Alphanumeric Display How to Operate the C2300 2 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to increase or decrease the volume level of the low frequencies Refer to ou 17 Figure 17 The Front Panel Display indicates the Bass changes in steps from 12dB to 12dB After approximately 3 seconds the Alphanumeric Display returns to indicate the Source Selection and Volume Level TREBLE The Intensity of the High Frequencies in the music can be increased or decreased by using the Trim Select and Trim Adjust Controls To make adjustment per form the following 1 Rotate the Front Panel TRIM SELECT Control or press the TRIM Push button on the Remote Control until TREBLE __ appears on the Front Panel Alphanumeric Display 2 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to increase or decrease the volume level of the high frequencies Refer to ae 18 Figure 18 The Front Panel Display indi
22. he channel balance and freedom from control noise The Volume Control on the Front Panel of the C2300 is actually a special digital optical encoder As the Volume Control is rotated a beam of Infra Red Light is picked up by two internal sensors as a series of digital pulses Refer to the exploded view in figure 29 The number of and time between pulses are counted by a Microprocessor which in turn controls the McIn tosh designed Precision Electronic Attenuator that provides 213 steps in 0 5dB increments and maintains the channel balance to within 0 1dB With most Preamplifiers the Volume Control is placed ahead of the Amplifying Circuitry providing large dynamic range and freedom from input overload however background noise level is higher at lower settings of the volume control By placing the Volume Control after the Amplifying Circuitry there is lower background noise however a reduction in dynamic range and input overload is the result The only cor rect way to design a high performance Preamplifier is with two volume controls This provides the benefits of wide dynamic range freedom from Input overload and a background noise level that actually goes down Optical Disc Sensors Figure 29 as the volume control setting is reduced The special controlling circuitry for this dual volume control design is known as the McIntosh Dynamic Control Multiplexer Meter and Circuitry MclIntosh solved the problems with
23. information on the other Trim Fuc tions refer to pages 16 17 and 18 Acc On Off Press ACC ON to turn the power ON or ACC OFF switches AC Power OFF to McIntosh Components when connected to the ACC Power Control Jack Amplifier Selection Press the BLUE Setup Push button followed by the AM Output 1 or FM Output 2 Push buttons to con trol the rear panel OUTPUTS 1 2 ON or OFF These OUTPUTS provide signals to a Power Amplifier or other accessory component How to Operate the C2300 Power On The Red LED above the STANDBY ON Push button lights to indicate the C2300 is connected to AC Power To Switch ON the C2300 press the STANDBY ON Push button on the Front Panel or the on the Remote Control either the PWR Power or Power On Push button The title TUBE WARMUP will appear on the Front Panel Alphanumeric Display after Turn On with the Audio Outputs muted Refer to figures 12 13 14 and 21 Figure 13 Source Selection Select the desired source using the INPUT Control or Remote Control 60 50 40 30 20 10 o OUTPUT LEVEL IN dB INPUT TRIM SELECT Q MENU SELECT 1 HEADPHONES TONE BYPASS 0 MONO REC MONITOR McIntosh C2300 TUBE PREAMPLIFIER Fe 0 Volume Control Rotate the Front Panel VOLUME Control or use the VOLume or Push buttons on the Remote Control for the desired listening level Trim Functions The C2300 has six different Trim Selections with
24. k of the program source just recorded press the RECord MONITOR Push button Note The C2300 SRVR REC OUTPUTS are not af fected by the VOLUME or BALANCE controls Reset of Microprocessors In the unlikely event the controls of the C2300 stop functioning the microprocessors can be reset by per forming the following 1 Press and hold in the STANDBY ON Push button for approximately five seconds and then release the push button 2 Press the STANDBY ON Push button the C2300 will resume normal operation Note This can be performed with the C2300 On or in the Standby Mode Technical Description FE Er SE En u u EEE u er u Bi The McIntosh engineering staff has created a Tube Preamplifier w thout compromise using the most advanced McIntosh circuit design concepts Many months of design testing and measuring were re quired Extensive controlled listening tests the ulti mate form of measuring were made before the final design was accepted Silent Audio Switching All signal switching in the C2300 is done by Electro Magnetic devices Electro Magnetic Switching s a proven technology that uses the latest in materials and manufacturing methods Each switch consists of a glass tube that is filled with an inert oxygen free atmosphere and sealed with tiny leads protruding from either end These leads extend into the tube and overlap one another with a separation of a few thou sandths of an inch The leads are made from a fe
25. li fier The level is set by a digitally controlled electronic attenuator This provides a 12dB boost or cut in 1dB steps at the frequency of the tuned circuit The Bass turn over frequency is 200Hz The Treble turn over frequency is 2kHz The overall gain of the stage is OdB when the tone is adjusted to flat The TONE BYPASS switch removes all tone control circuits from the signal path Volume Adjustments The most frequently operated control on a Preampli fier is the Volume Control So it is no surprise that McIntosh has devoted a substantial amount of time in pursuit of the Perfect Volume Control System Conventional Mechanical Controls have poor tracking especially when it comes to maintaining channel balance and after a period of time they tend to introduce noise into the audio signal as they are rotated The one desirable thing they have is the rate of change in volume for degrees of rotation known as the audio taper Using Electronic Circuitry for control ling the volume can be designed to be free from noise and maintain channel balance however the audio Technical Description taper produced by the typ cal Electronic Volume Con trol Circuit is unacceptable for use in the C2300 as it does not match the classic McIntosh Volume Control Audio Taper The C2300 incorporates electronic cir cuitry together with sophisticated firmware to produce electronically the classic McIntosh Volume Control Audio Taper while maintaining t
26. mbers 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 n the U S A McIntosh Part No 04130100
27. me relative volume The Tuner and CD Inputs are used in the following example Note The range of adjustment is 6dB The Tape Re cord Output Levels are unaffected by any changes in the Level Trim Settings The Trim adjustments made are retained in permanent memory They can be changed by performing a new Trim Proce dure The Tuner Input Volume Level can serve as a reference or choose another source frequently listened to The reference Input Source should be set to a Trim Level of 00 1 Rotate the INPUT Control to select the Tuner Input and adjust the VOLUME Control to the desired listening level 2 Press the SETUP Push button to access the Setup Mode 3 Rotate the MENU INPUT Control until TRIM TUN 0 0 appears on the Front Panel Alphanu Nil MN WIN I Default Settings The Default Settings Chart below indicates the Func tion Name Default Setting and the Page Number for additional information Default Settings Function Name C2300 TRIM INPUT METER DISPLAY TRIGger ACCessory lt C gt TUBE LED PASSTHRU 3 TUN Firmware Version The C2300 functionality s controlled by internal software that s know as Firmware The Version of the Firmware in the C2300 can be identified at any time by utilizing the Setup Mode 1 Press the SETUP Push button to access the Setup Mode 2 Rotate the MENU INPUT Control until C2300 V1 00 or higher appears Refer to figure 2 Figure 4 Note If necessary rotate
28. nches 63 5cm Phono 80dB Headphone Load Impedance 16 ohms to 250 ohms 12 C2300 Bass and Treble Control Curves F 6 12 20 50 100 200 500 1k 2k 5k 10k 20k Hz 22 Packing Instructions ER Packing Instructions In the event it is necessary to repack the equipment for Quantity Part Number Description shipment the equipment must be packed exactly as 1 033888 Shipping carton only shown below It is very important that the four plas 4 033887 End cap tic feet are attached to the bottom of the equipment This will ensure the proper equipment location on the 1 033697 Inside carton only bottom pad Failure to do this will result in shipping 1 034414 Top pad foam damage 1 034301 Bottom pad Use the original shipping carton and interior parts only if they are all in good serviceable condition If 4 017937 Plastic foot a shipping carton or any of the interior part s are 4 400159 10 32 x 3 4 screw needed please call or write Customer Service Depart 4 404080 10 7 16 Flat washer ment of McIntosh Laboratory Refer to page 3 Please see the Part List for the correct part numbers TOP PAD FOAM nn UNIT WITH 4 FEETON BOTTOM COVER PLASTIC FOOT 4 10 32 x 3 4 SCREW WITH WASHER 4 IMPORTANT Read Above BOTTOM PAD CARTON INSIDE ae CARTON 23 McIntosh Laboratory Inc 2 Cha
29. nd operating functions for reliable noiseless distortion free switching All eight Inputs on the C2300 can be matched in level so there are no abrupt changes in volume levels between the different Inputs There is also a Record Monitor function for checking the progress of a recording e Moving Coil and Moving Magnet Phono Inputs The C2300 contains two different precision Phono Preamplifier Circuits One for low output Moving Coil Phono Cartridges with selectable resistance loading the other is for Moving Magnet Cartridges with select able capacitive loading Both circuits use the latest designs to provide the lowest possible noise and dis tortion The RIAA Correction Equalization Circuitry utilizies close tolerance resistors and capacitors for an extremely flat frequency response e Balanced Inputs The Balanced Inputs allow the connection of a source component using long cable lengths without a loss in sound quality e Precision Tracking Volume Control Volume levels are controlled by a new Multi Stage Precision Digitally Controlled Attenuator System with a tracking accuracy of 0 1dB e Variable Rate Volume and Balance Control Selec tion The C2300 Tube Preamplifier s Volume and Balance Control Circuitry provides an ideal rate of change with control rotation e Assignable Tone Controls with Bypass The C2300 remembers the Bass and Treble Control Settings or the Tone Circuitry Bypass Option for each input e Alphanumeric
30. nel LED will illuminate indicating the MONO Mode is active The C2300 automatically stores into memory for each Input the Selection of the Stereo or Mono Mode Note The signals at the SRVR OUT REC Jacks are not affected Record Monitor Press the REC MONITOR Push button to hear the SERVER Playback Signal during the recording pro cess Setup Pressing the SETUP Push button activates the Setup Mode of the C2300 and allows customizing various operating functions Refer to page 11 for additional information Mute Press the MUTE Push button on the C2300 Front Panel or on the Remote Control to Mute the Audio at the OUTPUTS Connectors and HEADPHONES Out put Jack The Front Panel Alphanumeric Display will indicate the Input Source Name followed by the word MUTE 1n place of the actual volume setting Refer to figure 24 14 Figure 24 How to Operate the C2300 con t Pressing the Mute Push button a second time or adjusting the volume control either the Front Panel or Remote Control will un mute the C2300 If the Front Panel MUTE Push button is pressed for at least 3 seconds the C2300 will mute the OUT PUTS connectors yet listening with headphones will continue until the Mute Push button is pressed again for 3 seconds The Front Panel Alphanumeric Display will indicate the Input Source Name Volume Setting and a Dot Refer to figures 25 and 26 WA VA Tt ae Jt Kils DU pi Figure 25 Wha LA Figure
31. nents Press TRIM and then the LEVEL Push buttons to select and adjust various functions Selects FM Tuner Operating Functions and Track Selection on certain McIntosh CD Players Use to select tuner presets disc tracks or any numbered operation Use to select tuner presets disc tracks or any numbered operation Scrolls through the available C2300 Inputs Selects one of nine available Audio Sources Press to listen to the selected Record Out Signal Note Push buttons whose function is not identified above are for use with other McIntosh Products How to use the Remote Control How to use the Remote Control The supplied HRO73 Remote Control is capable of directly controlling the functions of contemporary McIntosh Source Components connected to the C2300 via the Data Ports Note If at any time the C2300 seems unresponsive to HR073 Remote Control Commands press the M Push button first Input Source Selection Press the appropriate Source Push button to select the desired program source Sources may also be selected by pressing the lt INPUT push button Mute Press the MUTE Push button to mute audio The Record Signals present at the SRVR REC OUTPUT Jacks are not affected by the MUTE function The C2300 Front Panel Alphanumeric Display will indi cate the word MUTE Note For additional information on the various Mute Modes refer to page 18 Mode Press the MODE Push button to switch from Stereo to Mono fo
32. ntil the display Il I Wi LI Figure 11 4 Press the SETUP Push button to exit the Setup Mode 14 Turns AC Power ON or OFF to McIntosh Components when con nected to ACC Power Control Jack refer to How to use the Remote Control Acc On Off information LED illuminates during the time a remote command is sent to the C2300 Selects a Disc Player Music Server or Recorder Function Seek Sta tions Up or Down the AM FM Dial Select AM FM Station Presets and performs various functions on a variety of McIntosh Components Displays On Screen Functions on the McIntosh Music Server and a variety of other McIntosh Components Adjusts the volume level up or down Press MODE to switch between Stereo and Mono Modes Mutes the audio Selects AM Tuner Operating Functions and Disc Selection on certain McIntosh Disc Players Selects Functions as a shift key when used with the AM or FM push buttons to select Output or 2 Scrolls through the available C2300 Inputs TCE cm DVD TUNER AUX CDR SERVER MM ans 0 REC MON McIntosh Remote Control Push Buttons Press to Power the C2300 ON Press to Power the C2300 OFF Press to review Tuner Station Presets with an external McIntosh Tuner connected and select certain functions on a variety of McIntosh Components Selects On Screen Functions on a variety of McIntosh Compo
33. o rain or moisture does not operate normally or has been dropped Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the equipment To completely disconnect this equipment from the a c mains disconnect the power supply cord plug from the a c receptacle The mains plug of the power supply cord shall remain readily operable Do not expose batteries to excessive heat such as sunshine fire or the like Connect mains power supply cord only to a mains socket outlet with a protective earthing connection Thank You Se Your decision to own this McIntosh C2300 Tube Pre amplifier ranks you at the very top among discrimi nating music listeners You now have The Best The McIntosh dedication to Quality is assurance that you will receive many years of musical enjoyment from this unit Please take a short time to read the information in this manual We want you to be as familiar as pos sible with all the features and functions of your new McIntosh Please Take A Moment eee nmmnmmamam nz ZZ Ju The serial number purchase date and McIntosh Dealer name are important to you for possible insurance claim or future service The spaces below have been provided for you to record that information Serial Number Purchase Date Dealer Name Technical Assistance If at any time you have questions about your McIntosh product contact yo
34. of the C2300 are extruded aluminum panels with a bead blast textured surface and a black anod ized finish e Fiber Optic Solid State Front Panel Illumination The even Illumination of the Front Panel is accom plished by the combination of custom designed Fiber Optic Light Diffusers and extra long life Light Emit ting Diodes LEDs The glass Front Panel ensures the pristine beauty of the C2300 will be retained for many years Dimensions The following dimensions can assist in determining the best location for your C2300 There is additional information on the next page pertaining to installing the C2300 into cabinets Front View of the C2300 17 12 m 44 45cm MeIntosh Be C2300 TUBE PREAMPLIFIER T 1 8 18 10cm Rear View of the C2300 17 1 8 43 50cm r CG M MAIN e 1 cha D a oto D illcIntosh l S230 TUBE OGOOGO hana ae ND an OOO OOOO D D D 6 3 8 O00000 O OOOOO 16 19cm O ojoh T Sooma 250v EXT _ DATA PORTS 1 700 855 55 O5 5 08 98585 X TRIGGERS 13 1 4 33 66cm T 5 8 19 37cm uf Side View of the C2300 16 1 2 41 91cm 14 1 2 SS 1 15 16 4 92cm T J Lo ry 10 9 16 l 26 83cm
35. ordinary meters in the C2300 By developing electronic circuits the meters are made to respond to short intervals with an accuracy of 95 To permit the eye to see such high speed motion the electronic circuits that drive the meter pointer are time stretched Special logarithmic 12AX7A MeIntosh USA EER MM PHONO MM PHONO Mc TUNER INPUTS 12AX7A MeIntosh USA RIGHT MM PHONO INPUT SELECTOR circuitry allows the meter to indicate a 60dB plus range without resorting to a Meter Range Switch Power Supply Circuits To compliment the design of the C2300 there are fully regulated power supplies The special R core trans former supplies the necessary voltage current for the low and high voltage regulated circuitry C2300 Block Diagram RECORD MONITOR SELECTOR 12AX7A McIntosh USA LEFT MC PHONO ELECTRONIC CONTROL REC OUTPUT BUFFER 12AX7A 12AX7A 12AX7A MeIntosh McIntosh McIntosh USA USA USA RIGHT LEFT RIGHT MC PHONO MAIN MAIN OUTPUT gt MAIN BUFFER a OUTPUT gt 4 TONE POST OUTPUT BUFFER ss CONTROL ATTENUATOR SELECTOR OUTPUTS OUTPUT gt 2 BUFFER 2 SRVR 21 Specifications Frequency Response 0 0 5dB from 20Hz to 20 000Hz 0 1dB from 10Hz to 100 000Hz Total Harmonic Distortion 0 08 from 20Hz to 20 000Hz Rated Output Main 2 5V Unbalanced 5V Balanced Maximum Voltage Output 8V RMS Unbalanced 16V RMS Balanced
36. press the LEVEL Push buttons to adjust the volume level from 6dB to 6dB Refer to figure 20 After approximately 3 seconds the Alphanumeric Display re turns to the indicate the Source Selection and Volume Level METER ILLUMINATION The C2300 Front Panel Meter Illumination may be switched On or Off by performing the following 1 Rotate the TRIM SELECT Control or press the TRIM Push button on the Remote DISP Control until METER GUIDE ON appears on the Front Panel Alphanumeric Dis play 2 Rotate the TRIM ADJUST Control or press the LEVEL Push buttons to switch On or Off the Meter Illumi nation KE DD After approximately 3 seconds T the Alphanumeric Display re e o turns to the indicate the Source Selection and Volume Level Note When the Main Power Control of the C2300 is connected to a McIntosh Power Amplifier with Re mote Meter Illumination Control the C2300 Meter Illumination Setting of On or Off will also affect the Power Amplifer Meter Illumination amp HRO73 Mcintosh Figure 21 How to Operate the C2300 con t PHONO ADJUSTMENTS When the Phono MC or Phono MM Input is selected an additional TRIM SELECT FUNCTION becomes available for adjustment Perform the following steps to make the Phono Trim Adjustments 1 Select either the Phono MM or Phono MC Input using the INPUT Control 2 Rotate the TRIM SE
37. r Monophonic listening Disc Server and Tape Functions Use these push buttons to operate a DVD Player CD Player CD Changer Music Server or Recorder Numbered Push buttons Press Push buttons 0 through 9 to access tuner sta tion presets tracks on discs or selections on a Music Server Disc and Track Use the AM disc and FM track Push buttons when a Disc Player or Music Server is being used Tuner Push buttons Press the AM or FM Push button to select the de sired broadcast band Press and release the Seek or Seek Push button to seek the next available station Press and hold a Seek or Seek Push button to seek continuously from station to station Volume Press the VOLume or Push button to raise or lower the listening volume level Note The Record Signals present at REC OUTPUTS are not affected by volume changes Pause Press the Pauselll Pushbutton to perform various func tions on a variety of McIntosh Components It will also pause the playing of a disc or tape player Trim Press the TRIM Push button until the word BAL ANCE __ appears on the Alphanumeric display then press the LEVEL Push button to emphasize the Left Channel or LEVEL Push button to emphasize the Right Channel Press the TRIM Push button until the word TRIM So appears on the Alphanumeric display then press the LEVEL or Push button to match the vol ume level of the previously selected Input Note For additional
38. rate the Setup Mode ee 1 PG EU Dei NSS ee 11 Firmware Versies EEN area 11 Trim Level Adjustment uses 11 12 R rile 60 0 11 ee 12 Meter Illumination On Off nnee 12 Display Brig HESE een 12 Power Control Triggers issicssmiierisoisiseiieirirnniain 12 Accessory Power COD ol 13 Toe LED eoe 13 Pas ee 13 Remote Control Remote Control Push Duttons au 14 How to Operate by Remote Control 15 Operation How to Operate the C2300 re 16 19 Additional Information Technical Descriptio sea 20 21 SPee CUON EE 22 Packing ISOC ON e eee 23 Copyright 2007 2011 by McIntosh Laboratory Inc 3 General Information l The C2300 uses Vacuum Tubes for amplifying the audio signal The C2300 s 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 C2300 Tube Preamplifier The Main AC Power going to the C2300 and any other McIntosh Components should not be applied until all the system components are connected together Failure to do so could result in malfunc tioning of some or all of the system s normal opera tions When the C2300 and other McIntosh Com ponents are in their Standby Power Off Mode the Microprocessor s Circuitry inside each component is active and communication is occurring between
39. rrous material that is influenced by a magnetic field They are first plated with gold as a base material then with rhodium and finally ruthe nium Ruthenium is the best contact material known Refer to figure 28 The glass assembly is then placed in the center of a multilayer coil of copper wire The entire assembly is molded together in a tough shock absorbing mate rial The switch and coil connectors extend from the bottom n the form of printed circuit board terminals When a DC voltage is applied to the coil current flows and creates a magnetic field The force of the field causes the leads to bend and contact one another inside the sealed glass tube The inert gas eliminates 20 corrosion of the contacts and insures a low resistance distortion free switch All inputs outputs and data ports are controlled by logic circuits in the C2300 The logic is changed by Front Panel Push buttons or by a microproces sor IR decoder This microprocessor IR decoder is programmed with exclusive McIntosh software It receives data from the Front Panel or Sensors and pro vides the command signals for input switching data switching tone control and volume control Phono Circuitry McIntosh has long been known for its expertise in low noise discrete amplifier circuits The MC Amplifier consists of two stages which together have a gain of 60dB at 1000Hz The first stage pre preamplifier 1s a new design Moving Coil Preamplifier using
40. s An I additional connection on the Illumination Main Power Control Jack is Control und for controlling the illumination Output 1 and 2 ACC of the Power Output Meters on Jacks McIntosh Power Amplifiers A 1 8 inch stereo mini phone Power Control plug is used for connection to the Power Control Trigger and N C Pass Thru Outputs on the C50 Grond Note The Power Control Trig ger Pass Thru and Data Connecting Cable is avail able from the Mcintosh N C Parts Department Trigger Control Ground Power Control Trigger Pass Thru and Data Cable Part No 170 202 Six foot shielded 2 conductor with 1 8 inch stereo mini phone plugs on each end Data Port Connectors The C50 Data Out Ports send Remote Control Signals to Source Components A 1 8 inch stereo mini phone plug is Data used for connection Siena N C Data Ground Introduction and Performance Features Introduction Tr Te MME The McIntosh C2300 Tube Preamplifier is one of the finest Tube Preamplifiers ever created The versatile Preamplifier provides connections for various input sources and outputs to drive multiple Power Ampli fiers The C2300 reproduction is sonically transparent and absolutely accurate The McIntosh Sound is The Sound of the Music Itself Performance Features SS SS Se ee e Flectromagentic Input Switching with Level Trim Adjustment Digital Logic integrated circuits drive Electromag netic Switches on all Inputs a
41. tlined in steps 8 thru 11 Sensor Connections 13 Connect a RGS59U or RG6U Cable from the C2300 EXT SENSOR F Connector to the McIntosh Sensor F Connector Audio Connections 14 Connect an Audio Cable from the C2300 TUNER INPUT Jacks to the McIntosh TUNERI Fixed Output Jacks 15 Connect Balanced Cables from the C2300 CD INPUT Jacks to the McIntosh SACD CD Player Fixed Balanced Output Jacks Note Unbalanced Audio Cables may be used instead of the Balanced Cables but not both 16 Connect an Audio Cable from the C2300 SRVR INPUT Jacks to the McIntosh Music Server Out put Jacks 17 Connect an Audio Cable from the C2300 SRVR OUTPUT Jacks to the McIntosh Music Server Input 3 Jacks 18 Connect Balanced Cables from the C2300 D A IN PUT Jacks to the McIntosh D A Converter output Jacks 19 Connect the Audio Cables coming from the Turn table to the C2300 MC PHONO INPUT Jacks Note If the Turntable has a Moving Magnet Car tridge connect the audio cables to the C2300 MM PHONO INPUT instead of the MC Input 20 Connect Balanced Cables from the C2300 MAIN OUTPUT jacks to the McIntosh Power Amplifiers Main Left and Right Input jacks Connect an Audio Cable from the C2300 OUTPUT 1 jacks to the McIntosh Power Amplifier Second ary Input jacks 22 Connect any additional McIntosh Components in a similar manner as outlined in steps 14 thru 21 Optional PassThru Connections 23 Connect Audio Cables or
42. ur McIntosh Dealer who is familiar with your McIntosh equipment and any other brands that may be part of your system If you or your Dealer wish additional help concerning a suspected problem you can receive technical assistance for all McIntosh products at McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 Phone 607 723 3512 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 2 Chambers Street Binghamton New York 13903 Phone 607 723 3515 Fax 607 723 1917 Table of Contents Saleiy IS CG IIIS een 2 Thank You and Please Take a Moment 3 Technical Assistance and Customer Service 3 Table of Contents acetates reese nenne 3 General IH IOr Man een 4 Connector and Cable Information 4 OC UIC TIO fore ee enter 5 Performance Features sahne 5 PIE ION esse earth een 6 BAYS CATION RE ERNEUERT EHEN NIIHERUEER I Connections Rear Panel Connect 8 Oe al le GCE re Mc2A Connecting Om PONG iS een 9 Connection Diagrams Separate SHCC S iussisse Mc1A Mc1B and Mc2B Front Panel Front Panel Displays Controls Push buttons AIG I K R EER E ERE 10 Setup How to Ope
43. y On proceed to step 2 1 Press the STANDBY ON Push button to switch On the C2300 The title TUBE WARMUP will appear on the Front Panel Alphanumeric Display Refer to figure 1 Note The Red LED above the STANDBY ON Push button lights to indicates the C2300 is con nected to AC Power 2 Press the C2300 Front Panel SETUP Push button The LED above the SETUP Push button will il luminate and the Front Panel Display will indicate C2300 V1 00 or higher Refer to figure 2 Figure 2 Note The Front Panel Display will indicate C2300 V1 00 or higher the first time after that it will display whatever Setup Mode was last ac cessed 3 Rotate the MENU INPUT Control and notice the Setup Mode goes forward through eight different possible adjustment selections and one informa tional display 3 The number after the character V is the Firm ware number 4 Press the SETUP Push button to exit the Setup Mode 4 To exit from a specific Setup Mode press the SETUP Push button a second time The LED above the SETUP Push button will extinguish and the Front Panel Display will revert back to its normal display Refer to figure 3 TO A W N i Trim Level Adjustment fis Pi Source Components can have slightly different volume Figure 3 levels resulting in the need to readjust the C2300 Volume Control when switching between different sources The C2300 allows the adjustment of levels for each of the Source Inputs for the sa
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