McIntosh MA6900 - Manual - manualsarea.com

Page 2 - IMPORTANT SAFETY

2 IMPORTANT SAFETY INSTRUCTIONS! PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT. WARNING - TO REDUCE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence...

Page 6 - Custom Cabinet Cutout; in Custom Cabinet

6 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 t...

Page 7 - MA6900 Rear Panel Connections and Switch

7 MA6900 Rear Panel Connections and Switch Main Fuse holder, refer to information on the back panel of your MA6900 to determine the cor- rect fuse size and rating Right OUTPUT Connections for 2, 4 or 8 ohm loudspeakers Left OUTPUT Connections for 2, 4 or 8 ohm loudspeakers The EXT (external) SENSOR(...

Page 8 - the twisted; Right; How to Connect Loudspeakers

8 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 ...

Page 10 - Note: Either or both Audio/Video Selector Monitor; McIntosh DVD Player

10 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 Au- dio Outputs to the MA6900 VIDEO INPUTS. 3. Connect the Audio/Video Selecto...

Page 11 - Note: A Wall Mounted IR Sensor may also be used in place

11 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 Am- plifier to the loudspeakers. Refer to page 8 in this Owners Manual for connection details. ...

Page 12 - Front Panel Controls, Push-Buttons and Switch; HEADPHONES jack

12 Front Panel Controls, Push-Buttons and Switch POWER switch turns all AC power completely ON or OFF MONO push-button combines the left and right channel signals for Mono operation VOLUME control allows adjustment of the listening level for both channels The BALANCE control allows adjustment of the...

Page 13 - Figure 1

13 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 approxi- mately two seconds after turn on. Re- ...

Page 14 - How to Operate, cont; Figure 6; Figure 8; Figure 7

14 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 and 2 On or Off for connection to external Power Amplifier(s). Press either push-button individually, or both together. Refer to figure 6. He...

Page 15 - Notes

Page 16 - Remote Control Push-Buttons; Note: The Remote Control push-buttons that

16 Remote Control Push-Buttons Selects one of the twelve High Level Audio/Video Sources or Phono Input Turns AC Power ON or OFF to certain McIntosh Components when connected via the Data Port Adjusts the volume level up or down Selects CD Player or Tape Recorder Functions and also performs various f...

Page 18 - Technical Description; Preamplifier Design Philosophy; Bottom Inside View of the MA6900; Equalizer Control Adjustment Range; dB

18 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 cre- ated a power amplifier without compromise, using the most advanced McIntosh circuit design concepts. A...

Page 19 - Power Amplifier Design Philosophy; Block Diagram of the Amplifer and Meter Circuitry

19 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 in- sures a low resistance, distortion free switch. All inputs, outputs, and data ports are controlled...

Page 20 - Autoformers

20 Input Test Signal Figure 14 Without Power Guard Figure 15 Top Inside View of the MA6900 Figure 12 Figure 13 ance points of two ohms, four ohms and eight ohms. The unequaled expertise of McIntosh in the design and manu- facturing of autoformers is legendary in the high fidelity industry. The high ...

Page 21 - With Power Guard; Power Supply Circuits; Block Diagram of the Power Supply

21 Figure 16 With Power Guard PG light and a dynamic elec- tronic attenuator at the amplifier input reduces the input volume just enough to prevent any fur- ther increase in distortion. The Power Guard circuit acts so fast that there are absolutely no au- dible side effects and the sonic purity of t...

Page 22 - Note: Refer to the rear panel of the MA6900 for the correct

22 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 Dis...

Page 24 - Chambers Street

McIntosh Part No. 040772 McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903