Owner's Manual for McIntosh models including: MC 2.1K W Power Amplifier, MC 2.1K W, Power Amplifier, Amplifier
McIntosh MC2.1KW Amplifier
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DocumentDocumentMcIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.com M C 2 .1K W POWER AMPLIFIER OWNER'S MANUAL Thank You from all of us at McIntosh Table of Contents Introduction 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. If you need further technical assistance, please contact your dealer who may be more familiar with your particular setup including other brands. You can also contact McIntosh with additional questions or in the unlikely event of needing service. McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903 Technical Assistance (607) 723-3512 Fax (607) 724-0549 Customer Service (607) 723-3515 Fax (607) 723-1917 Email support@mcintoshlabs.com Website www.mcintoshlabs.com Please Take A Moment For future reference, you can write down your serial number and purchase information here. We can identify your purchase from this information if the occasion should arise: Thank You from all of us at McIntosh .. .. .. 2 Introduction . .. .. .. .. .. .. .. .. .. .. .. .. .. 2 General Information .. .. .. .. .. .. .. .. .. .. 3 Performance Features.. .. .. .. .. .. .. .. .. .. 4 Dimensions .. .. .. .. .. .. .. .. .. .. .. .. .. 5-7 Front Panels.. .. .. .. .. .. .. .. .. .. .. .. .. 8-9 Rear Panels .. .. .. .. .. .. .. .. .. .. .. .. .10-11 Connecting the Modules .. .. .. .. .. .. .. .12-13 Inserting and Locking the Cables .. .. .. .. ..12 Connecting the Cables .. .. .. .. .. .. .. .. ..13 Connecting a Single Preamplifier .. .. .. .. ..14 XLR Connectors . .. .. .. .. .. .. .. .. .. .. .. 14 RCA Connectors . .. .. .. .. .. .. .. .. .. .. .. 14 Power Control Connectors .. .. .. .. .. .. .. .. 14 Connecting Two Preamplifiers .. .. .. .. .. ..15 Connecting a Loudspeaker.. .. .. .. .. .. .16-17 Loudspeaker Impedance . .. .. .. .. .. .. .. .. 16 Loudspeaker Cables .. .. .. .. .. .. .. .. .. .. 16 Output Terminals .. .. .. .. .. .. .. .. .. .. .. 16 Output Terminal Covers . .. .. .. .. .. .. .. .. 16 Loudspeaker Cable Connections .. .. .. .. .. 17 System Specifications .. .. .. .. .. .. .. .. .. ..18 Power Module Specifications .. .. .. .. .. .. ..18 Output Module Specifications .. .. .. .. .. ..18 Packing Instructions .. .. .. .. .. .. .. .. .. ..19 Parts List .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..19 The McIntosh MC2.1KW Monoblock Power Amplifier is the ultimate power in home audio amplification. The pinnacle of audio amplification, the MC2.1KW stands as a testament to our unwavering commitment to sonic perfection. This tri-chassis marvel possesses the remarkable ability to deliver an astonishing 2,000 Watts of pristine McIntosh power, forever transforming your home stereo or theater experience. At McIntosh, we don't just appreciate sound we are Made of SoundTM. Safety First Please read the safety instructions included in a separate document called Important Additional Operation Information Guide. Serial Number: __________________________ Purchase Date:___________________________ Dealer Name: ___________________________ 2 1. The MC2.1KW Power Module weight is 145 pounds (65.8 kilograms) and the MC2.1KW Output Module weight is 125 pounds (56.7 kilograms). It requires two or more persons to safely handle when moving the Power or Output Module. 2. Each of the MC2.1KW Power Modules needs to be connected to a dedicated AC circuit. The MC2.1KW Output Module should be connected to a third separate AC circuit. The third AC circuit may have other components connected, including additional MC2.1KW Output Modules. Contact your McIntosh dealer and a certified electrician for additional information and assistance. 3. The AC power cables going to the MC2.1KW Power Modules, MC2.1KW Output Module and all other components should not be connected to AC power until all system components are connected together. 4. Always provide adequate ventilation for the MC2.1KW Output and Power Modules. Each module should be installed upright and on its feet. Do not install any of the modules directly above any type of heat generating component. For the MC2.1KW Output Module allow at least 2 inches (5.1cm) of space above the top and 2 inches (5.1cm) of space on each side. For the MC2.1KW Power Modules allow at least 6 inches (15.2cm) of space above the top and 2 inches (5.1cm) of space on each side. 5. In the event that either or both MC2.1KW Power Modules overheat, the thermal protection circuits will activate, should this happen, the sound will be muted, and the MC2.1KW Output Module Power Guard LED will illuminate. When the MC2.1KW Power Modules have returned to a safe operating temperature, normal operation will resume. 6. The MC2.1KW loudspeaker negative connections are above chassis ground. Do not combine any connections together, ground them or connect with another MC2.1KW Power Amplifier. 7. Each MC2.1KW Power Module connects to the MC2.1KW Output Module with two different interconnect cables. Do not use any other cable when connecting the MC2.1KW Output Module to the MC2.1KW Power Modules. These cables are for use only with the MC2.1KW Power Amplifier. If all cables are not connected correctly, the MC2.1KW Power Amplifier will not power up. Refer to pages 12 and 13 for additional information on connecting the MC2.1KW Power Modules to the MC2.1KW Output Module. MC2.1KW General Information 8. It is important to keep your McIntosh unit out of direct sunlight and only use appropriate gentle cleaners because the Organic Anodize can become discolored over time. While most products will maintain their classic dark features for their lifetime, some situations can accelerate discoloration. The most pervasive culprit is UV light, especially light directly from the sun, or high intensity spotlights. Even high intensity short-term exposure can result in discoloration. Chemicals can also alter the finish of the Anodize. Aggressive cleaners will take their toll over time and actually etch away the Anodize finish. 9. The MC2.1KW has been tested and certified for indoor use only. 3 Performance Features · Quad Balanced Design The MC2.1KW consists of one Output Module and two Power Modules each containing its own 1,000 Watt amplifier. The incoming audio signal enters the Output Module from the preamplifier. An in-phase signal is sent to one of the Power Modules and amplified while an out-of-phase signal is sent to the other Power Module and amplified. Both amplified signals exit the Power Modules and reenter the Output Module where they drive opposite ends of the bi-filar wound McIntosh Autoformer. This combines the amplified signals back into one at twice the power. Through this artful engineering, a low distortion audio signal leaves the Output Module to deliver pristine sound through your loudspeaker. · Power Output The MC2.1KW Power Amplifier is capable of 2,000 Watts into a 2, 4, or 8 ohm loudspeaker with less than 0.005% distortion. It can provide peak current of 200 amperes and over 8,000 Watts of power output on music bursts. · ThermalTrakTM Power Transistors The MC2.1KW uses a total of 96 ThermalTrak Power Transistors in the Power Modules for fast thermal bias tracking. This is accomplished using a thermally matched bias diode that is part of the transistor die itself thereby eliminating any delay in establishing thermal equilibrium. ThermalTrakTM is a trademark of Semiconductor Components Industries, LLC. · Power Guard® The patented McIntosh Power Guard circuit prevents the amplifier from being overdriven into clipping. Clipping produces a harsh distorted sound and can also damage loudspeakers. · Sentry MonitorTM The McIntosh Sentry Monitor circuit monitors amplifier output current to keep it within a safe range should a short or improper load be present on the amplifier output. · Monogrammed HeatsinksTM The McIntosh designed Monogrammed Heatsinks ensure thorough and even heat dissipation in the Power Module output stage. Thermal protection is provided for each heatsink should there be inadequate ventilation. · Proprietary AutoformerTM The McIntosh designed and manufactured output Autoformer provides an ideal match between the Power Module output stage and loudspeaker loads of 2, 4, and 8 ohms. The Autoformer also provides perfect DC protection for your loudspeakers. · Solid CinchTM Binding Posts Our patented Solid Cinch binding posts easily but securely attach the loudspeaker cables for a solid connection. The posts are gold-plated to prevent corrosion and ensure a quality signal is sent over your loudspeaker cables. There are three sets of binding posts for each of the three output impedances. This allows for easy bi or tri-wiring of a loudspeaker. · Illuminated Glass Front Panel The famous McIntosh illuminated front panel is made from 1/2 inch thick glass and uses Light Emitting Diodes (LEDs) for even illumination and long life. · Illuminated Power Meter The Illuminated Power Output Meter is peak responding and indicates the true power output of the amplifier. A choice of displaying either the dynamic power output or displaying peak hold is available. Meter lighting can also be controlled from the front panel or remotely. · Remote Power Control McIntosh power control circuits allow for remote turn on/off of the MC2.1KW Power Amplifier from a McIntosh preamplifier or A/V control center. Meter illumination can also be controlled remotely using the preamplifier or A/V control center's trim menu. · Independent Power Supplies The MC2.1KW Output Module uses a low noise R-Core power transformer with fully regulated power supplies for powering the low-level audio, control and illumination circuits. Each MC2.1KW Power Module uses a large toroidal power transformer and large filter capacitors with a total of 860 Joules of energy. · Dual Inputs for Advanced System Configurations The MC2.1KW has dual sets of balanced and unbalanced inputs, conveniently allowing you to connect more than one preamplifier. This gives you the ability to easily switch between preamps of different types such as vacuum tube and solid-state. 4 17 15/16" 45.6cm 17 11/16" 44.9cm 12 5/32" 30.9cm 10 7/8" 27.6cm 1" 2.5cm LIGHTS OFF METER WATTS HOLD POWER GUARD OFF/ REMOTE POWER INPUT 1 INPUT 2 MC2.1KW OUTPUT MODULE 12 1/4" 31.1cm MC2.1KW Dimensions 17 15/16" 45.6cm 17 11/16" 44.9cm 1 -80V 67,000 F 215 JOULES 2 +80V 67,000 F 215 JOULES 3 +80V 67,000 F 215 JOULES 4 -80V 67,000 F 215 JOULES MC2.1KW POWER MODULE 12 1/4" 31.1cm 10 7/8" 27.6cm 1" 2.5cm 5 Dimensions (continued) 1 5/8" 4.1cm 3 31/32" 10.1cm 15 1/4" 38.7cm 23 3/16" 58.9cm 3 3/8" 8.6cm 7" 17.8cm 1 5/8" 4.1cm 3 31/32" 10.1cm 15 1/4" 38.7cm 23 3/16" 58.9cm 3 3/8" 8.6cm 7" 17.8cm 6 MC2.1KW Dimensions (continued) A 2 OUTPUTS B CLASS 3 WIRING C A 4 OUTPUTS B CLASS 3 WIRING C - + A FUSE FUSE - - 8 OUTPUTS + B CLASS 3 WIRING + C A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT 11 3/4" 29.8cm CIRCUIT BREAKER OUTPUT MODULE LIGHT CONTROL ON / METER OFF SERIAL NUMBER OUTPUT MODULE MC2.1KW POWER MODULE McINTOSH LABORATORY, INC. BINGHAMTON, NY HANDCRAFTED IN USA WITH US AND IMPORTED PARTS CAUTION 11 3/4" 29.8cm 7 Front Panels LIGHTS OFF METER WATTS HOLD POWER GUARD OFF/ REMOTE POWER INPUT 1 INPUT 2 MC2.1KW OUTPUT MODULE 1 -80V 67,000 F 215 JOULES 2 +80V 67,000 F 215 JOULES 3 +80V 67,000 F 215 JOULES 4 -80V 67,000 F 215 JOULES MC2.1KW POWER MODULE 8 1. METER Control Knob LIGHTS OFF - The meter operates as if in the WATTS position, but meter illumination is turned off. WATTS - The meter dynamically responds to power output. HOLD - The meter will hold the highest power output peak then gradually decay until a higher peak is reached. When in the WATTS or HOLD position, meter illumination can be controlled from a preamplifier with meter light control capabilities if there is a power control connection. Refer to pages 14 and 15 for making a power control connection. 2. POWER OUTPUT Meter Displays the power output in WATTS (top scale) and DECIBELS (bottom scale). 3. POWER GUARD Indicator The POWER GUARD indicator will illuminate under the following conditions: · When the Power Guard circuit activates to control excessive distortion in the audio output. · When the audio is muted due to high temperatures in any of the Power Module heatsinks. · When the audio is muted during the MC2.1KW power on sequence (approximately 4 seconds). 4. OFF/REMOTE Indicator Indicates that the MC2.1KW is in the OFF/ REMOTE operating mode. When the MC2.1KW is off, this indicates that the Output Module is connected to AC power and all interconnect cables are properly connected to the Power Modules. When the MC2.1KW is on, this indicates that it is being controlled remotely by an audio preamplifier with a power control connection. 5. POWER Control Knob OFF/REMOTE - With no power control connection being used, the MC2.1KW will be off in this position. With power control being used, the MC2.1KW will be on in this position provided the preamp that is connected to either power control input is on. INPUT 1 - The MC2.1KW will turn on and INPUT 1 will be active. INPUT 2 - The MC2.1KW will turn on and INPUT 2 will be active. When the POWER Knob is in either the INPUT 1 or INPUT 2 position, power control input is overridden. MC2.1KW Front Panels (continued) 6. INPUT 2 Indicator Indicates that INPUT 2 is the active audio input. 7. INPUT 1 Indicator Indicates that INPUT 1 is the active audio input. 8. Capacitor Bank Illumination of the Capacitor Bank will follow illumination of the meter by either the front panel METER Control Knob or by using a power control connection. Refer to METER Control Knob above. Illumination of the Capacitor Bank can be permanently turned off by using the LIGHT CONTROL switch on the rear panel of the Power Module. Refer to Rear Panel information on pages 10 and 11. 9 Rear Panels A 2 OUTPUTS B CLASS 3 WIRING C A 4 OUTPUTS B CLASS 3 WIRING C - + A FUSE FUSE - - 8 OUTPUTS + B CLASS 3 WIRING + C A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT CIRCUIT BREAKER OUTPUT MODULE LIGHT CONTROL ON / METER OFF SERIAL NUMBER OUTPUT MODULE MC2.1KW POWER MODULE McINTOSH LABORATORY, INC. BINGHAMTON, NY HANDCRAFTED IN USA WITH US AND IMPORTED PARTS CAUTION 10 1. Output Module AC Input Connect the MC2.1KW Output Module to an AC circuit that is separate from any MC2.1KW Power Module. The Output Module can be connected to an AC circuit with another Output Module or other lower power system components. 2. Fuse Under normal operation, the fuse should not need to be replaced. If required, refer to the rear panel for the proper fuse type and rating. 3. INPUT 1 UNBAL This input accepts an unbalanced (RCA) signal from a preamplifier. BAL This input accepts a balanced (XLR) signal from a preamplifier. MODE Set the MODE switch to the appropriate position depending on the type of input being used. Only one type of input (UNBAL or BAL) should be connected to INPUT 1. Refer to pages 14 and 15 for additional information on connecting inputs. 4. INPUT 2 UNBAL This input accepts an unbalanced (RCA) signal from a preamplifier. BAL This input accepts a balanced (XLR) signal from a preamplifier. MODE Set the MODE switch to the appropriate position depending on the type of input being used. Only one type of input (UNBAL or BAL) should be connected to INPUT 2. Refer to pages 14 and 15 for additional information on connecting inputs. 5. POWER/INPUT CONTROL AUTO OFF When enabled, after approximately 30 mins without an audio signal, the MC2.1KW will turn off to conserve power. The AUTO OFF switch can be set to DISABLE to prevent this. If the front panel POWER Control Knob is set to OFF/REMOTE and the MC2.1KW is being controlled by a preamplifier, the AUTO OFF function is automatically disabled. MAIN/IN 1 - When connected to a preamplifier with power control capabilities, a control signal at the IN connection will turn the MC2.1KW on and select INPUT 1. The OUT connection provides a power control signal that can be used to control other components. The OUT connection is always active whenever the MC2.1KW is powered on, regardless of a signal at the IN connection. IN 2 -When connected to a preamplifier with power control capabilities, a control signal at the IN connection will turn the MC2.1KW on and select INPUT 2. The OUT connection provides a power control signal that can be used to control other components. The OUT connection is active whenever INPUT 2 is selected. To use POWER/INPUT CONTROL the front panel POWER Control Knob must be in the OFF/ REMOTE position. If the POWER Control Knob is set to INPUT 1 or INPUT 2, all power control signals are overridden. If there is a control signal present at both MAIN/ IN1 and IN2 at the same time, INPUT 2 will be selected. To switch back to INPUT 1, the control signal on IN2 must be turned off. 6. POWER MODULE Connections These connections are used to connect the MC2.1KW Output Module to each of the 2 MC2.1KW Power Modules using the supplied interconnect cables. Refer to pages 12 and 13 for additional information on connecting the modules. 7. 8 OUTPUTS This set of outputs is for connecting an 8 loudspeaker to the MC2.1KW. Multiple pairs of outputs (A, B and C) are provided for bi-wiring or tri-wiring. Refer to pages 16 and 17 for additional information on connecting loudspeakers. MC2.1KW Rear Panels (continued) 8. 4 OUTPUTS This set of outputs is for connecting a 4 loudspeaker to the MC2.1KW. Multiple pairs of outputs (A, B and C) are provided for bi-wiring or tri-wiring. Refer to pages 16 and 17 for additional information on connecting loudspeakers. 9. 2 OUTPUTS This set of outputs is for connecting a 2 loudspeaker to the MC2.1KW. Multiple pairs of outputs (A, B and C) are provided for bi-wiring or tri-wiring. Refer to pages 16 and 17 for additional information on connecting loudspeakers. 10. Power Module AC Input Connect the MC2.1KW Power Module to an AC circuit that is separate from any other MC2.1KW Power Module or any other system component. 11. CIRCUIT BREAKER Under normal operation, the CIRCUIT BREAKER should never activate. If the breaker does activate, the tip of the breaker will pop out. Reset the breaker by pushing in on the tip. 12. OUTPUT MODULE Connections These connections are used to connect each of the 2 MC2.1KW Power Modules to the MC2.1KW Output Module using the supplied interconnect cables. Refer to pages 12 and 13 for additional information on connecting the modules. 13. LIGHT CONTROL Switch This switch is used to control the illumination of the front panel capacitor bank. When set to ON/ METER, the capacitor bank illumination will follow the illumination of the power output meter. When set to OFF, the illumination will always be off. Refer to pages 8 and 9 for controlling illumination of the meter and capacitor bank. 11 Connecting the Modules Each MC2.1KW Power Module must be properly connected to the MC2.1KW Output Module for the system to operate. Two 30 Pin Interconnect Cables with green ID rings and two 8 Pin Interconnect Cables with blue ID rings are provided for these connections. If any of the four cables are not connected, or if any are not connected to the correct module, the OFF/REMOTE indicator on the front panel of the MC2.1KW Output Module will not illuminate and the system will not power on. Follow the steps below on how to insert and lock the connectors and follow the steps on page 13 to connect the modules together. Inserting and Locking the Cables 1. Align the indicator on the cable connector with the indicator on the receptacle. ALIGNMENT INDICATOR ALIGNMENT INDICATOR 3. Gently insert the cable connector into the receptacle. 2. Rotate the locking ring on the cable connector so that one of the three locking keys engages the key slot. 4. Rotate the locking ring clockwise until the connector is fully locked into the receptacle. The supplied McIntosh wrench can be used to assist in locking the connectors. LOCKING KEY LOCKING RING KEY SLOT LOCK UNLOCK 12 MC2.1KW Connecting the Modules (continued) Connecting the Cables 1. Choose one of the two MC2.1KW Power Modules to be the Module. For convenience, use the Power Module with an in the serial number. 2. Connect one 30 Pin Interconnect Cable (Green Ring) ring to the 30 Pin Receptacle (Green Ring) on the back of the Power Module rear panel. 3. Connect this same cable to the 30 Pin Receptacle (Green Ring) on the back of the MC2.1KW Output Module that is labeled . 4. Connect one 8 Pin Interconnect Cable (Blue Ring) to the 8 Pin Receptacle (Blue Ring) on the back of the Power Module rear panel. 5. Connect this same cable to the 8 Pin Receptacle (Blue Ring) on the back of the MC2.1KW Output Module that is labeled . 6. The other Power Module will be the Module. For convenience, this is the Power Module with a in the serial number. 7. Connect one 30 Pin Interconnect Cable (Green Ring) ring to the 30 Pin Receptacle (Green Ring) on the back of the Power Module rear panel. 8. Connect this same cable to the 30 Pin Receptacle (Green Ring) on the back of the MC2.1KW Output Module that is labeled . 9. Connect one 8 Pin Interconnect Cable (Blue Ring) to the 8 Pin Receptacle (Blue Ring) on the back of the Power Module rear panel. 10. Connect this same cable to the 8 Pin Receptacle (Blue Ring) on the back of the MC2.1KW Output Module that is labeled . Power Module Output Module Power Module CIRCUIT BREAKER OUTPUT MODULE LIGHT CONTROL ON / METER OFF SERIAL NUMBER OUTPUT MODULE MC2.1KW POWER MODULE McINTOSH LABORATORY, INC. BINGHAMTON, NY HANDCRAFTED IN USA WITH US AND IMPORTED PARTS CAUTION A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT CIRCUIT BREAKER OUTPUT MODULE LIGHT CONTROL ON / METER OFF SERIAL NUMBER OUTPUT MODULE MC2.1KW POWER MODULE McINTOSH LABORATORY, INC. BINGHAMTON, NY HANDCRAFTED IN USA WITH US AND IMPORTED PARTS CAUTION 30 Conductor Cable (Green Ring) 8 Conductor Cable (Blue Ring) 13 Connecting a Single Preamplifier When connecting a preamplifier to the MC2.1KW use connectors with the pin configurations shown below. XLR Connectors RCA Connectors (+) Signal 21 3 Ground Signal Ground (-) Signal Power Control Connectors Power Control Meter Illumination Control Ground PREAMPLIFIER BAL R MAIN / HIGH PASS BAL L L UNBAL R BAL R OUTPUT 1 / LOW PASS BAL L L UNBAL R OUTPUT 2 (SUBWOOFER) BAL R BAL L L UNBAL R CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN SERIAL NUMBER BALANCED INPUTS PROCESSOR LOOP RETURN SEND UNBALANCED INPUTS 1 2 3 4 PHONO INPUTS 1 GND 2 1R 1L 2R 2L 3R 3L L L R R POWER CONTROL TRIG 3 TRIG 1 MAIN EXTERNAL CONTROL IR IN DATA PORTS 1 3 5 SERVICE PORT TRIG 4 TRIG 2 PASSTHRU RS232 2 4 6 NETWORK CONTROL / UPDATE ONLY DIGITAL AUDIO INPUTS USB AUDIO MCT OPTICAL 2 OPTICAL 1 HDMI (ARC) SERIAL NUMBER COAX 2 COAX 1 14 A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT RIGHT OUTPUT MODULE A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT LEFT OUTPUT MODULE PREAMPLIFIER 2 BAL R MAIN / HIGH PASS BAL L L UNBAL R BAL R OUTPUT 1 / LOW PASS BAL L L UNBAL R OUTPUT 2 (SUBWOOFER) BAL R BAL L L UNBAL R CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN SERIAL NUMBER BALANCED INPUTS PROCESSOR LOOP RETURN SEND UNBALANCED INPUTS 1 2 3 4 PHONO INPUTS 1 GND 2 1R 1L 2R 2L 3R 3L L L R R POWER CONTROL TRIG 3 TRIG 1 MAIN EXTERNAL CONTROL IR IN DATA PORTS 1 3 5 SERVICE PORT TRIG 4 TRIG 2 PASSTHRU RS232 2 4 6 NETWORK CONTROL / UPDATE ONLY DIGITAL AUDIO INPUTS USB AUDIO MCT OPTICAL 2 OPTICAL 1 HDMI (ARC) SERIAL NUMBER COAX 2 COAX 1 MC2.1KW Connecting Two Preamplifiers PREAMPLIFIER 1 BAL R MAIN / HIGH PASS BAL L L UNBAL R OUTPUT 1 / LOW PASS BAL R BAL L L UNBAL R OUTPUT 2 (SUBWOOFER) BAL R BAL L L UNBAL R CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN SERIAL NUMBER BALANCED INPUTS PROCESSOR LOOP RETURN SEND UNBALANCED INPUTS 1 2 3 4 PHONO INPUTS 1 GND 2 1R 1L 2R 2L 3R 3L L L R R POWER CONTROL TRIG 3 TRIG 1 MAIN EXTERNAL CONTROL IR IN DATA PORTS 1 3 5 SERVICE PORT TRIG 4 TRIG 2 PASSTHRU RS232 2 4 6 NETWORK CONTROL / UPDATE ONLY DIGITAL AUDIO INPUTS USB AUDIO MCT OPTICAL 2 OPTICAL 1 HDMI (ARC) SERIAL NUMBER COAX 2 COAX 1 A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT RIGHT OUTPUT MODULE A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT LEFT OUTPUT MODULE 15 Connecting a Loudspeaker Loudspeaker Impedance Output Terminal Covers The MC2.1KW has three sets of output terminals, ±2 ohm, ±4 ohm, and ±8 ohm. Based on the specifications of your loudspeaker, determine the best set of terminals to use. For a speaker whose To gain access to the output terminals, use the supplied 1/8 in Hex T-Handle to remove the four screws that hold the clear polycarbonate cover to the rear of the output module. If needed, the top impedance falls between two choices, use the cover with glass window may also be removed by lower impedance terminal. Each impedance set has using the supplied 5/32 in Hex T-Handle to remove three pairs of terminals for bi-wiring or tri-wiring the four screws that hold the cover to the top. After a loudspeaker. all loudspeaker connections have been made, all Loudspeaker Cables When connecting loudspeakers to the MC2.1KW terminal covers must be reinstalled with their appropriate screws. it is very important to use cables of adequate size. 3 The size is specified in AWG (American Wire Gauge). The smaller the gauge number, the larger the wire size. 4 1 2 1/8 in Hex T-Handle Loudspeaker Cable Wire Gauge Guide Loudspeaker Impedance 25 feet (7.62 meters) or less Cable Distance 50 feet (15.24 meters) or less 100 feet (30.48 meters) or less 2 ohms 12AWG 10AWG 8AWG 4 ohms 14AWG 12AWG 10AWG 8 ohms 16AWG 14AWG 12AWG 5/32 in Hex T-Handle 1 2 8 - VIO 4 - GRN IN - GRY 2 - ORN COM BLK 2 + RED IN + WHT 4 + YEL 8 + BLU any level from 250 mW to rated power output 0.005% maximum harmonic distortion at TOTAL HARMONIC DISTORTION 2.5dB DYNAMIC HEADROOM power output minimum sine wave continuous average 2000 watts into an 8, 4 or 2 ohm load is the POWER OUTPUT BALANCED AUDIO AUTOFORMER 2kW Power Level 15Hz to 100kHz Frequency Range MC2.1KW OUTPUT MODULE Output Terminals Loudspeaker cables should be terminated on the ends to securely fit into the terminals according to the dimensions below. PRI 2 VIO GRY PRI 1 BLU BLK WHT GRN 123dB below rated output A-WEIGHTED SIGNAL TO NOISE RATIO 5.0 volts balanced 2.5 volts unbalanced INPUT SENSITIVITY +0, -3dB from 10Hz to 100,000Hz +0, -0.25dB from 20Hz to 20,000Hz FREQUENCY RESPONSE R-CORE POWER TRANSFORMER BLU GRN BLU RED YEL RED Control SEC 2 Audio Level Low SEC 1 5/16" 7.9 mm Ø 3/16" 4.8 mm 3 4 16 Loudspeaker Cable Connections When connecting loudspeaker cables to the MC2.1KW output terminals follow the steps below: 1. Make sure AC power is disconnected. 2. Rotate the top of the output terminal counter- clockwise until an opening appears. Opening 3. Insert the loudspeaker cable into the output terminal. Proper polarity must be maintained for all connections. (+/-) 4. Rotate the top of the output terminal clockwise until it is finger tight. 5. Place the McIntosh wrench over the top of the output terminal and rotate the output terminal clockwise one quarter of a turn (90°). Do not over tighten. MC2.1KW Connecting a Loudspeaker (continued) A 2 OUTPUTS B CLASS 3 WIRING C A 4 OUTPUTS B CLASS 3 WIRING C - + A FUSE FUSE - - 8 OUTPUTS + B CLASS 3 WIRING + C A POWER MODULE B PUSH UNBAL INPUT 1 BAL MODE BAL UNBAL UNBAL INPUT 2 BAL MODE BAL UNBAL PUSH A POWER MODULE B POWER / INPUT CONTROL AUTO OFF MAIN / IN 1 IN 2 ENABLE IN IN DISABLE OUT OUT LOW MID HIGH 17 System Specifications Power Output 2000 watts into 2 ohm load 2000 watts into 4 ohm load 2000 watts into 8 ohm load Rated Power Band 20Hz to 20,000Hz Dynamic Headroom 2.1dB Wide Band Damping Factor Greater than 40 Frequency Response +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz Total Harmonic Distortion 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz Intermodulation Distortion 0.005% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any combination of frequencies from 20Hz to 20,000Hz Signal To Noise Ratio (A Weighted) 123dB below rated output Input Sensitivity (for rated output) 5.0 Volts Balanced 2.5 Volts Unbalanced Input Impedance 22,000 ohms Balanced 22,000 ohms Unbalanced Voltage Output 126.5V across 8 ohms 89.5V across 4 ohms 63.3V across 2 ohms Voltage Gain 34dB, 8 ohms 31dB, 4 ohms 28dB, 2 ohms Power Control Input 5-12VDC Power Control Output 12VDC, 25mA 18 Power Module Specifications Power Requirements 100 Volts, 50/60Hz at 1440 watts 110 Volts, 50/60Hz at 13.0 amps 120 Volts, 50/60Hz at 12.0 amps 220 Volts, 50/60Hz at 7.5 amps 230 Volts, 50/60Hz at 6.5 amps 240 Volts, 50/60Hz at 6.5 amps Refer to the rear panel of the MC2.1KW Power Module for the correct voltage. Overall Dimensions Width is 17 15/16 inches (45.6cm) Height is 11 7/8 inches (30.2cm) Depth is 30 3/16 inches (76.7cm) Weight 145 pounds (65.8 kg) net 165 pounds (74.8 kg) in shipping carton Output Module Specifications Power Requirements 100 Volts, 50/60Hz at 35 watts 110 Volts, 50/60Hz at 35 watts 120 Volts, 50/60Hz at 35 watts 220 Volts, 50/60Hz at 35 watts 230 Volts, 50/60Hz at 35 watts 240 Volts, 50/60Hz at 35 watts Refer to the rear panel of the MC2.1KW Output Module for the correct voltage. Overall Dimensions Width is 17 15/16 inches (45.6cm) Height is 12 5/32 inches (30.9cm) Depth is 30 3/16 inches (76.7cm) Weight 125 pounds (56.7 kg) net 150 pounds (68 kg) in shipping carton 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 aluminum 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. If a shipping carton or any of the interior part(s) are needed, please call or write Customer Service Department of McIntosh Laboratory. Refer to page 2. Please see the Part List for the correct part numbers. TOP CARTON CABLES Parts List Quantity 1 2 3 1 1 Part Number 03410500 03473400 03467800 03373900 03410400 MC2.1KW Description Shipping Carton Top Foam Pads Top/Bottom Foam Rings Poly Bag Shipping Carton Bottom TOP FOAM PAD WITH ROUND PLUG FOAM RING (3X) UNIT WITH (4) FEET ON BOTTOM COVER USE BANDING STRAPS AS SHOWN POLY BAG BOTTOM FOAM PAD · FOR OUTPUT MODULE USE POCKET FOR CABLES. · FOR POWER MODULE USE POCKET WITH ROUND PLUG. CARTON BOTTOM SEAL WITH PACKAGING TAPE Trademarks of McIntosh Laboratory, Inc.: The following are Registered Trademarks of McIntosh Laboratory, Inc. in multiple jurisdictions around the world: the written McIntosh logo; the McIntosh Globe logo; the Mc logo; Power Guard; Power Guard Screen Grid Sensor; Power Guard SGS; LD/HP; Dynamic Power Manager; the 4DPM8 logo; HXD; the HXD logo; Behind The Sound; Legendary Performance. The following are Trademarks of McIntosh Laboratory, Inc. in multiple jurisdictions around the world: Autoformer; Sentry Monitor; Solid Cinch; McIntosh Monogrammed Heatsinks; Hybrid Drive; DualView; TripleView; Made of Sound. The foregoing trademarks, registered and otherwise, are not to be used, reproduced, or registered in any way without the express written permission of McIntosh Laboratory, Inc. 19 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 www.mcintoshlabs.com The continuous improvement of its products is the policy of McIntosh Laboratory, Inc. who reserve the right to improve design without notice. Printed in the U.S.A. © 2024 McIntosh Laboratory, Inc. McIntosh Part No. 24123700