Owners Manual MA6900 Integrated Amplifier MA6900 McIntosh Laboratory, Inc.
The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. 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. General: 1. Read these instructions. 2.
A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a 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. 18. Do not overload wall outlets, extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock. 19.
Introduction and Performance Features Table of Contents Introduction Safety Instructions ............................................................ 2 Thank You and Please Take a Moment............................. 3 Technical Assistance and Customer Service .................... 3 Table of Contents and General Notes ............................... 4 Introduction ...................................................................... 4 Performance Features ..................................................
MA6900 Dimensions MA6900 Dimensions The following dimensions can assist in determining the best location for your MA6900. There is additional information on the next page pertaining to installing the MA6900 into cabinets. 17-1/2" 44.45cm Front View of the MA6900 7 -1/8" 18.10cm 7 -5/8" 19.37cm 16-1/16" 40.8cm Rear View of the MA6900 6" 15.24cm 12-3/16" 30.96cm 18-3/4" 47.63cm 16-1/2" 41.91cm Side View of the MA6900 13/16" 2.06cm 6-1/4" 3/16" 0.48cm 15.88cm 13" 33.02cm 1" 2.
Installation Installation The MA6900 can be placed upright on a table or shelf, standing on its four feet. It also can be custom installed in a piece of furniture or cabinet of your choice. The four feet may be removed from the bottom of the MA6900 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 MA6900 is removed from the custom installation and used free standing.
MA6900 Rear Panel Connections and Switch Main Fuse holder, refer to information on the back panel of your MA6900 to determine the correct fuse size and rating Right OUTPUT Connections for 2, 4 or 8 ohm loudspeakers The EXT (external) SENSOR(s) for a Keypad or IR Sensor POWER CONTROL MAIN Output sends a turn-on signal to an external McIntosh Power Amplifier when the MA6900 is turned on Connect the MA6900 power cord to a live AC outlet.
How to Connect Loudspeakers How to Connect Loudspeakers Caution: The supplied AC Power Cord should not be connected to the Rear Panel of the MA6900 Amplifier until after the Loudspeaker Connections have been made. Failure to observe this could result in Electric Shock. 1. Prepare the Loudspeaker Hookup Cables that attach to the Amplifier by choosing one of the methods below: Bare wire cable ends: Carefully remove sufficient insulation from the cable ends, refer to figures 1, 2 & 3.
How to Connect Audio Components How to Connect Audio Components 1. Connect an Audio Cable from the McIntosh CD Player Audio Outputs to the MA6900 CD2 INPUTS. 2. Connect an Audio Cable from a McIntosh Tuner 1 Outputs to the MA6900 TUNER INPUTS. 3. Connect an Audio Cable from a Turntable to the PH/AUX INPUTS and the Turntable Ground Connection to the GND grounding post. 4.
How to Connect for Video Switching How to Connect for Video Switching 1. Connect a Data cable from the MA6900 VIDEO DATA PORT to the Audio/Video Selector Data In jack. 2. Connect the Audio/Video Selector Control Center Audio Outputs to the MA6900 VIDEO INPUTS. 3. Connect the Audio/Video Selector Video Monitor Output to a Monitor/TV. Note: Either or both Audio/Video Selector Monitor Output(s) may be connected to the Monitor/TV. 4.
How to Connect for a Second Room How to Connect for a Second Room 1. Connect Audio Cables from the MA6900 OUTPUTS 2 to the Second Power Amplifier Inputs. 2. Connect Hookup Cables from the Second Power Amplifier to the loudspeakers. Refer to page 8 in this Owners Manual for connection details. 3. Connect a Control Cable from the MA6900 POWER CONTROL 2 Jack to the Power Control In of a McIntosh Power Amplifier. 4. Connect an RG6 or RG59U coaxial cable from the EXTernal SENSOR Jack to a Keypad.
Front Panel Controls, Push-Buttons and Switch The BALANCE control allows adjustment of the relative volume balance between channels Equalizer provides 12dB of boost or cut at the center frequencies indicated above each control METER indicates the Left Channel Power Output of the amplifier IR Sensor receives commands from a remote control Select any one of the six Audio signal sources 12 POWER switch turns all AC power completely ON or OFF METER indicates the Right Channel Power Output of the amplifi
How to Operate How to Operate Power On Press the POWER switch to ON. The Red LED above the STANDBY/ON push-button, lights to indicate the MA6900 is in Standby mode. To turn On the MA6900, press the STANDBY/ON push-button. The MUTE LED will light for approximately two seconds after turn on. ReFigure 1 fer to figures 1 and 2. Note: For normal operation, turn the MA6900 On and Off with the Standby/On pushbutton.
How to Operate, cont Outputs 1 and 2 Press OUTPUTS Push-button 1 to switch the Speakers On or Off. The push-buttons also switch the Preamplifier OUTPUTS 1 Figure 6 and 2 On or Off for connection to external Power Amplifier(s). Press either push-button individually, or both together. Refer to figure 6. Headphones Jack Connect a pair of dynamic headphones to the Headphones Jack for private listening. Press Mute to mute all other outputs including the amplifier connected to the loudspeakers.
Notes 15
Remote Control Push-Buttons Turns AC Power ON or OFF to certain McIntosh Components when connected via the Data Port Press to Power the MA6900 ON or OFF Selects Functions for McIntosh Home Controller and as a shift key when used with the AM or FM push-buttons to select Output (Spkr) 1 or 2 Selects one of the twelve High Level Audio/Video Sources or Phono Input Selects On Screen Functions for McIntosh DVD Players and certain CD Players Selects CD Player or Tape Recorder Functions and also performs var
How to Operate by Remote Control How to Operate by Remote Control The supplied remote control is capable of directly controlling the functions of contemporary McIntosh Source Components connected to the MA6900. Earlier McIntosh source components and other brand source components can be controlled by the MA6900 with the addition of a McIntosh Remote Control Translator (RCT). Note: Your McIntosh Dealer can assist you with the installation and operation of the Remote Control Translator (RCT).
Technical Description McIntosh Laboratory, the company who introduced the worlds first amplifier that could be called High Fidelity, has done it again. The McIntosh engineering staff has created a power amplifier without compromise, using the most advanced McIntosh circuit design concepts. A continuous average power output rating of 200 watts and with an output current of greater than 50 amperes per channel, making this the most advanced Integrated Amplifier McIntosh has ever manufactured.
Technical Description 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 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 MA6900. The logic is changed by front panel push-buttons or by a microprocessor IR decoder. This microprocessor IR decoder is programmed with exclusive McIntosh software.
The Autoformer creates an ideal match between the power amplifier output stage and the loudspeaker. Refer to figure 12. There is absolutely no performance limitation with an Autoformer. Its frequency response exceeds that of the output circuit itself, and extends well beyond the audible range. Its distortion level is so low it is virtually impossible to measure.
With Power Guard PG light and a dynamic electronic attenuator at the amplifier input reduces the input volume just enough to prevent any further increase in distortion. The Power Guard circuit acts so fast that there are absolutely no audible side effects and the sonic purity of the music reproduction is perfectly preserved.
Specifications Specifications Power Output Minimum sine wave continuous average power output per channel, all channels operating is: 200 watts into 2 ohm load 200 watts into 4 ohm load 200 watts into 8 ohm load Rated Power Band 20Hz to 20,000Hz Total Harmonic Distortion Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is: 0.005% for 2, 4 or 8 ohm loads Dynamic Headroom 2.4dB Frequency Response +0, -0.
Packing Instructions Packing Instructions In the event it is necessary to repack the equipment for shipment, the equipment must be packed exactly as shown below. It is very important that the four plastic feet are attached to the bottom of the equipment. Three #10 x 2-1/4 inch screws and washers must be used to fasten the unit securely to the bottom pad and wood skid. This will ensure the proper equipment location on the bottom pad. Failure to do this will result in shipping damage.
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 McIntosh Part No.
