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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

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. If the cable is stranded,
carefully twist
the strands to-
gether as tightly
as possible.

Note: If desired,

the twisted
ends can be tinned with solder to keep the strands
together, or attach spade lug and/or banana
connector.

Spade lug or prepared wire connection:
Insert the spade lug connector or prepared section of
the 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:
Insert the banana plug into the hole at the top of the
terminal.

Note: Banana Plugs are for use in the United States and

Canada only.

2. Connect the loudspeaker hookup cables to the output

terminals that match the impedance of your loudspeak-
ers, being careful to observe the correct polarities. Out-
put impedance connections of 2 ohms, 4 ohms and 8
ohms are provided. If the impedance of your loud-
speakers is in-between the available connections, use
the nearest lower impedance connection.

WARNING: Loudspeaker terminals are hazardous live

and present a risk of electric shock. For
additional instruction on making
Loudspeaker Connections contact your
McIntosh Dealer or McIntosh Technical
Support.

Right
Loudspeaker
4 ohm

Left
Loudspeaker
4 ohm

How to Connect Loudspeakers

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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