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McIntosh MC-2000 - page 1
MC2000 T ube P ower Amplifier New Millennium Edition MC2000 T ube P ower Amplifier New Millennium Edition 50th Anniversar y 1949 - 1999 50th Anniversar y 1949 - 1999 MC2000 OWNER S MANU AL ...
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McIntosh MC-2000 - page 2
2 For Fifty Y ears 1999 is the 50 th year of business for McIntosh Laboratory of Binghamton, New Y ork. It all started when Frank H. McIntosh or ganized a small electronic en- gineering consulting firm in the W ashington, DC area. One of the many goals his firm ad- dressed was the need for a high quality audio power amplifier . No existing amplifie ...
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McIntosh MC-2000 - page 3
3 The MC2000 was Designed by Sidney A. Corderman McIntosh C22 Preamplifier McIntosh MR71 FM T uner McIntosh MCD7000 CD Player Sidney A. Corderman In 1951, Sidney A. Corderman joined the Company as Chief Engineer . He was directly in- volved with the designs of all the successful McIntosh prod- ucts from that time on. His elec- tronic genius is unpa ...
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McIntosh MC-2000 - page 4
4 Thank you for your decision to own this McIntosh MC2000 T ube Power Amplifier . Y ou now have The Best. The McIntosh dedication to Quality , is as- surance that you will receive many years of musical enjoyment from this unit. Please take the time to read the information in this Owners Manual. W e want you to be as familiar as pos- sib ...
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McIntosh MC-2000 - page 5
5 IMPOR T ANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERA TING THIS EQUIPMENT . General: 1. Read all the safety and operating instructions contained in this owner s manual, before operat- ing this equipment. 2. Retain this owner s manual for future reference about safety and operating instructions. 3. Adhere to all warnings and opera ...
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McIntosh MC-2000 - page 6
6 Care of Equipment: 18. Clean the instrument by using the supplied spe- cial fabric cloth. Unplug this equipment from the wall outlet and clean the front panel with a regu- lar cloth moistened with a window cleaner . Do not apply liquid or aerosol cleaners directly on the equipment. 19. Do not permit objects of any kind to be pushed and/or fall in ...
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McIntosh MC-2000 - page 7
7 Inst allation The installation of the MC2000 T ube Power Am pli- fier in your system consists of three main steps: 1. Unpacking the MC2000 along with accessories from their shipping cartons. 2. Installation of the vacuum tubes and the protec- tive tube cover . 3. Finally , the physical placement of the MC2000 in your system. Note: T wo pairs of w ...
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McIntosh MC-2000 - page 8
8 Installation of T ubes and Cover Y our MC2000 has gone through an extensive series of performance tests during the manufacturing pro- cess. The actual tubes that were used to test and con- firm the performance of this amplifier are included in the McIntosh MC2000 T ube Set Box, refer to figure 3. Inside the tube set box is a plastic overlay that ...
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McIntosh MC-2000 - page 9
9 Inst allation, cont Figure 6 T ube Cover Fastening Scr ew Locations T ube Cover Wide Side Opening After all the tubes have been inserted into the correct sockets, the tube cover must to be installed before op- erating the MC2000. Locate the tube cover and the two long fastening screws and perform the following steps: Installing the T ube Cover ...
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McIntosh MC-2000 - page 10
10 MC2000 Rear Panel Connections LEFT BALANCED INPUT for audio cables from a Preampli- fier or Control Center Audio Outputs RIGHT CHANNEL BALANCED INPUT for audio cables from a Preamplifier or Control Center Audio Outputs RIGHT UNBALANCED INPUT for audio cables from a Preamplifier or Con- trol Center Audio Outputs RIGHT OUTPUT connections for 2, 4 ...
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McIntosh MC-2000 - page 11
11 McIntosh C100 Controller 1. For Remote Power Control, connect a power con- trol cable from the Control Center or Preamplifier Power Control Out to the MC2000 Power Con- trol In. Note: The Power Contr ol Connecting Cable is available from the McIntosh Parts Department: Data and Power Control Cable Part No. 170- 202; six foot, shielded 2 conductor ...
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McIntosh MC-2000 - page 12
12 McIntosh C100 Preamplifier Spade lug or prepared wire connection: Insert the spade lug connector or prepared sec- tion of the cable end into the terminal side ac- cess hole, and tighten the terminal cap until the cable is firmly clamped into the terminal so the wires cannot slip out. Refer to figures 8, 9 & 10. Note: If the cables come witho ...
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McIntosh MC-2000 - page 13
13 MC2000 Front Panel Controls and Displays POWER Switch turns AC Power, ON/OFF , or ON/REMOTE modes METER indicates the Left Channel Power Output, switchable to indicate bias readings of each pair of Left Channel Output T ubes METER indicates the Right Channel Power Output, switchable to indicate bias readings of each pair of Right Channel Output ...
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McIntosh MC-2000 - page 14
14 Power On T o have the MC2000 automatically turn On or Off when a Control Center turns On or Off, rotate the POWER Switch to the REMOTE position. For manual operation, rotate the power switch to the ON or OFF position as desired. Note: Ther e must be a power contr ol connection between the MC2000 and the McIntosh Control Center , in or der for th ...
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McIntosh MC-2000 - page 15
15 MC2000. After the amplifier has been on for about 2 minutes make an initial adjustment (as outlined below). This should then be followed by a final adjustment after the MC2000 has been on for about 30 minutes. 3. Facing the Left Side of the MC2000 press and hold in the momentary push-button for V4+6 L, and at the same time carefully adjust the B ...
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McIntosh MC-2000 - page 16
16 T echnical Description In the late 1940 s Frank McIntosh and Gordon Gow invented and patented a new output circuit arrange- ment for audio power amplifiers, the McIntosh Unity Coupled Output Circuit. Refer to figure 19. This cir- cuit has two very impor - tant features that differen- tiate it from other de- signs. First, the output tubes deli ...
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McIntosh MC-2000 - page 17
17 T echnical Description - - Figure 20 Block Diagram of the Amplifier Section ...
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McIntosh MC-2000 - page 18
18 The driver stage is fed by the 12AX7A input/ phase inverter stage. A resistance-capacitance step network couples this stage to the driver . This arrange- ment controls low frequency phase shift. The phase inverter uses no coupling capacitors so no low fre- quency phase shift is introduced. Emitter follower stages are used at the plates of the 12 ...
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McIntosh MC-2000 - page 19
19 T echnical Description, cont Block Diagram of the Power Supply Section Figure 21 ...
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McIntosh MC-2000 - page 20
20 Note: These Performance Charts are examples of typical performance of the MC2000. -100 +0 20 20k 50 100 200 500 1k 2k 5k 10k Hz (Hertz) dB (Decibel) Signal to Noise Ratio FFT S pectrum Analysis ref. full power -25 +0 -20 -15 -10 -5 10 100k 20 50 100 200 50 0 1k 2k 5k 10k 20k 50k dB (Decibel) Hz (Hertz) Frequency Response @ 1 W att THD % 0. 1 0. ...
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McIntosh MC-2000 - page 21
21 Performance Chart s Note: These Performance Charts are examples of typical performance of the MC2000. -0 4 1 2 3 300m 200 500m 1 2 5 10 20 50 100 Power in W atts T o t al Harmonic Distortion vs. Power Output @ 20Hz THD % -0 4 1 2 3 300m 200 500m 1 2 5 10 20 50 100 Power in W atts T otal Harmonic Distortion vs. Power Output @ 1kHz THD % -0 4 1 2 ...
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McIntosh MC-2000 - page 22
22 Power Output 130 watts into 8, 4 or 2 ohm loads is the minimum sine wave continuous average power output per chan- nel from 20Hz to 20,000Hz with both channels oper- ating. T otal Harmonic Distortion 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz with both channels operat- ...
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McIntosh MC-2000 - page 23
23 Packing Instructions Packing Instructions In the event it is necessary to repack the MC2000 Amplifier for shipment, the equipment must be packed exactly as shown below . It is very important that the four metal feet are attached to the bottom of the equipment. This will ensure the proper location of the MC2000 on the bottom foam pad. The V acuum ...
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McIntosh MC-2000 - page 24
McINTOSH LABORA T OR Y , INC. 2 CHAMBERS STREET , BINGHAMTON, NEW YORK 13903-2699 The continuous impr o vement of its products is the policy of McIntosh Laborator y Incor porated who reser ve the right to improv e design without notice. Printed in the U .S.A. Part No. 040662 ...
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