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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 of
uninsulated “dangerous voltage” within
the product’s enclosure that may be of
sufficient magnitude to constitute a risk
of electric shock to persons.

NO USER-SERVICEABLE PARTS

INSIDE. REFER SERVICING TO

QUALIFIED PERSONNEL.

To prevent the risk of electric shock, do not remove cover or

back. No user serviceable parts inside.

The exclamation point within an equi-
lateral triangle is intended to alert the
user to the presence of important
operating and maintenance (servic-
ing) instructions in the literature ac-
companying the appliance.

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in

accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as

radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce
heat.

9. Do not defeat the safety purpose of the polarized

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 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.

10. Protect the power cord from being walked on or

pinched particularly at plugs, convenience
receptacles, and the point where they exit from

the apparatus.

11. Only use attachments/accessories specified by the

manufacturer.

12. Use only with the cart, stand, tripod,

bracket, or table specified by the
manufacturer, or sold with the
apparatus. When a cart is used, use
caution when moving the cart/
apparatus combination to avoid injury from tip-
over.

13. Unplug this apparatus during lightning storms or

when unused for long periods of time.

14. Refer all servicing to qualified service personnel.

Servicing is required when the apparatus has
been damaged in any way, such as power-supply
cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.

15. 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.

16. To completely disconnect this equipment from

the a.c. mains, disconnect the power supply cord
plug from the a.c. receptacle.

17. The mains plug of the power supply cord shall

remain readily operable.

Summary of Contents for MA6900

Page 1: ...MA6900 Owner s Manual McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 FAX 607 724 0549 Integrated Amplifier...

Page 2: ...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 prov...

Page 3: ...tosh Service Department at McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 Phone 607 723 3515 Fax 607 723 1917 If at any time you have questions about your McIntosh product contact...

Page 4: ...e McIntosh Sound is The Sound of the Music It self Important Information 1 The following parts are available from the McIntosh Parts Department Power Control Cable Part No 170 202 Six foot 2 conductor...

Page 5: ...ion on the next page pertaining to installing the MA6900 into cabinets MA6900 Dimensions 17 1 2 44 45cm 7 5 8 19 37cm 3 16 0 48cm 16 1 16 40 8cm Front View of the MA6900 Rear View of the MA6900 Side V...

Page 6: ...ventilation fan can be a definite as set in maintaining all the system compo nents at the coolest possible operating temperature A custom cabinet installation should provide the follow ing minimum spa...

Page 7: ...to a McIntosh Source Component or Power Control unit when the MA6900 is turned on DATA PORTS send signals to McIntosh Compatible Compo nents to allow control with the remote con trol Connect the MA69...

Page 8: ...cable end into the terminal side access hole and tighten the terminal cap until the cable is firmly clamped into the terminal so the wires cannot slip out Refer to figures 4 5 6 Banana plug connection...

Page 9: ...6900 TAPE INPUTS to a Tape Re corder Outputs 5 Connect a Control Cable from the MA6900 POWER CONTROL ACC Jack to the Power Control In on the McIntosh Tuner 6 Connect a Control Cable from the McIntosh...

Page 10: ...elector Monitor Output s may be connected to the Monitor TV 4 Connect a McIntosh DVD CD Player Audio Outputs to the Audio Video Selector V Aux Audio Inputs the Video Output to the Audio Video Selector...

Page 11: ...udspeakers Refer to page 8 in this Owner s Manual for connection details 3 Connect a Control Cable from the MA6900 POWER CONTROL 2 Jack to the Power Control In of a McIn tosh Power Amplifier 4 Connect...

Page 12: ...ands from a re mote con trol HEADPHONES jack allows connection of Stereo Headphones for private listening METER indicates the Left Channel Power Output of the amplifier POWER GUARD LEDs light when the...

Page 13: ...the PH AUX inputs set the PH AUX switch to the AUX position Refer to figure 4 Balance Control Adjust the BALANCE control as needed to achieve ap proximately equal listening volume levels in each loud...

Page 14: ...UTPUTS 1 Jacks and the POWER AMP INput Jacks Refer to figures 7 and 8 Note The McIntosh Jumpers must be connected between the above mentioned jacks when the MA6900 Internal Power Amplifier is to be us...

Page 15: ...15 Notes...

Page 16: ...ve are for use with other McIntosh Products Press MODE to switch between Stereo or Mono Modes Selects Switched Output 1 AM Tuner Operating Func tions and Disc Selection on certain McIntosh CD Players...

Page 17: ...Video Inputs Sources such as LV TV VCR VCR2 and DVD V Aux will become available by just pressing the desired program source push button on the remote control Disc Player Music Server or Tape Recorder...

Page 18: ...Extensive controlled listening tests the ultimate form of measuring were made before the final design was accepted Preamplifier Design Philosophy All signal switching in the MA6900 is done by Electro...

Page 19: ...t position In this position the tone control ele ments are completely removed from the signal path Power Amplifier Design Philosophy The design philosophy incorporated in the MA6900 in volved several...

Page 20: ...ion level is so low it is virtually im possible to measure In the rare event of a power amplifier output circuit failure the McIntosh Autoformer provides absolute protection from possible damage to yo...

Page 21: ...a high voltage power supply for both channels Refer to figure 17 The power amplifiers draw high current from the AC power line Therefore it is important that they plug directly into the wall outlet T...

Page 22: ...instanta neous peak output per channel does not exceed twice the rated output for any combination of fre quencies from 20Hz to 20 000Hz with all channels operating is 0 005 for 2 4 or 8 ohm loads Inp...

Page 23: ...e 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 Dep...

Page 24: ...Intosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without...

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