background image

6

Installation

Installation

It is recommended that a professional who is skilled in all
aspects of installation and operation install the MCC406M
and any associated mobile audio equipment.

Amplifier Ventilation

Always provide adequate ventilation for the MCC406M.
The amplifier requires an adequate airflow into the cooling
fans, which are located on the left side of the amplifier. The
warm air exits the amplifier through vents on the heatsinks.
See figure 1. Be sure to provide at least 1-1/2 inches clear-
ance in front of the cooling fans and 1 inch clearance at the
sides of the heatsinks.

The cooling fans are controlled by temperature sensors,

attached to the interior of the tunnel. The fans are normally
off. If the program material contains sustained loud pas-
sages demanding high power, the fans will turn-on to in-
crease cooling. If cooling is still not sufficient, additional
heating will shut down the amplifier internal power supply
completely and the Power Guard LEDs will light. The fans
will continue to run and once normal temperatures are re-
stored, operation will resume.

The amplifier can be mounted vertically or horizontally

and may be located under a seat if adequate clearance is
available. The preferred installation method is to mount the
amplifier directly to the vehicle main frame using the hard-
ware supplied with the amplifier.

It is not recommended that the amplifier be mounted

under the hood or in a location where it will be directly ex-
posed to the elements. The openings in the fan housings
and heat tunnel vents can allow internal components to be
damaged by exposure to water, chemicals or any form of
road dust or debris.

Removing the Glass Panel

To access the MCC406M Controls, remove the glass panel
by removing the four hex bolts with the supplied 3/32” hex
key. See figure 2. Attach the supplied suction cup to the top
center of the glass panel and carefully raise it high enough
to put your hand under. Temporarily place the removed
glass panel in a safe place, remove the suction cup and
save it for future use.

Removing the End Caps

To access the MCC406M Connecting Terminal Blocks, re-
move the Glass Panel first (the above step) and then re-
move the Phillips Screws holding the End Caps on both
sides of the amplifier and lift the end caps off. See figure 3.

Remove Top Cover Screws

Remove Top Cover Screws

Figure 2

Remove End Cap Screws

Remove End Cap Screws

Figure 3

Cool Air

Warm Air

Warm Air

Figure 1

Cool Air

Summary of Contents for MCC406M

Page 1: ...MCC406M Owner s Manual McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 FAX 607 724 0549 Power Amplifier ...

Page 2: ...not install near any heat sources such as radiators heat ducts or other apparatus including amplifiers that produce heat 9 Warning This unit is capable of producing high sound pressure levels Continued exposure to high sound pressure levels can cause permanent hearing impairment or loss User caution is advised and ear protection is recommended when playing at high volumes 10 Route DC power cords s...

Page 3: ...ct the McIntosh 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 your McIntosh Dealer who is familiar with your McIntosh equipment and any other brands that may be part of your system If you or your Dealer wish addi tional help concerning a suspected pr...

Page 4: ...n is sonically transparent and absolutely accurate The McIntosh Sound is The Sound of the Music Itself NEGATIVE SPEAKER OUTPUT POSITIVE SPEAKER OUTPUT High Current Output A peak output current of 20 amperes ensures that the MCC406M will successfully drive high quality Loud speakers such as McIntosh for a truly exciting sound ex perience Variable Crossover Filters The 12dB per octave high pass filt...

Page 5: ...M There is additional in formation on the next page pertaining to installing the MCC406M into your vehicle Dimensions 18 3 8 46 66cm Top View of the MCC406M Side View of the MCC406M 3 3 16 8 09cm 9 3 16 23 33cm 15 3 16 38 57cm 11 13 16 29 97cm 12 1 4 31 12cm 2 15 16 7 49cm 11 27 93cm 11 32 10 93cm ...

Page 6: ...ly or horizontally and may be located under a seat if adequate clearance is available The preferred installation method is to mount the amplifier directly to the vehicle main frame using the hard ware supplied with the amplifier It is not recommended that the amplifier be mounted under the hood or in a location where it will be directly ex posed to the elements The openings in the fan housings and...

Page 7: ...ntrols the Power Guard Circuit when connected to certain McIntosh Control Centers Cooling Fan Air Intake OUTPUT Connections for 2 4 or 8 ohm loud speakers Receives the Amplifier Turn ON signal from a McIntosh Control Center Connect to the Negative vehicle battery terminal OUTPUT Connections for 2 4 or 8 ohm loudspeakers Connector for optional Subwoofer Remote Volume Control ...

Page 8: ...nnect a cable up to 12 AWG from the Subwoofer Loudspeaker Driver to the McIntosh Mono Power Am plifier Output Terminals being careful to observe the correct polarities 5 Connect audio cables from the Control Center Front Outputs to the McIntosh Electronic Crossover Inputs 1 and 2 6 Connect audio cables from the McIntosh Electronic Crossover Low Mid and High Outputs 1 and 2 to the MCC406M Power Amp...

Page 9: ...9 How to Connect for Six Channels Left Front Tweeter Left Front Midrange Left Front Woofer Right Front Tweeter Right Front Midrange Right Front Woofer Subwoofer McIntosh Mono Power Amplifier ...

Page 10: ...to 12 AWG from the Subwoofer Loudspeaker Drivers to the MCC406M Power Ampli fier Channels 5 and 6 BRIDGED connection being careful to observe the correct polarities 5 Connect audio cables from the McIntosh Control Cen ter Front and Rear Outputs to the MCC406M Power Amplifier Inputs 1 2 3 and 4 6 Connect the optional McIntosh external Subwoofer Re mote Volume Control to the SUB REMOTE CON TROL Jack...

Page 11: ...s 5 and 6 Outputs being careful to observe the correct polarities 5 Connect audio cables from the McIntosh Control Cen ter Front and Rear Outputs to the MCC406M Power Amplifier Inputs 1 2 3 and 4 Note The Subwoofer Output Level can be remotely controlled by the optional McIntosh External Subwoofer Rotary Control connected to the SUB REMOTE CONTROL jack on the MCC406M 6 Connect the MCC406M to the v...

Page 12: ...t Power Guard Amp ON Vehicle Battery Fuse McIntosh External Subwoofer Rotary Control 4 Connect cables up to 12 AWG from the Subwoofer Loudspeaker Drivers to the MCC406M Power Ampli fier Channels 5 and 6 BRIDGED connection being careful to observe the correct polarities 5 Connect audio cables from the McIntosh Control Cen ter Front Outputs to the McIntosh Custom Environ mental Equalizer Inputs 1 an...

Page 13: ...13 How to Connect for Three Channels Left Loudspeaker System Right Loudspeaker System Subwoofer ...

Page 14: ...ter Switch and Control select the low frequency roll off or flat frequency response CH 1 2 HIGH PASS Filter Switch and Control select the low frequency roll off or flat frequency response CH 5 6 SENSITIVITY Individual Input Sensitiv ity Controls for Channels 5 and 6 INPUT SOURCE Switch for Channels 5 6 selects either CHs 5 and 6 1 and 2 or Subwoofer Sum of CHs 1 2 3 and 4 POWER GUARD LED lights wh...

Page 15: ...tting the FREQUENCY Control to 150 and the MULTIPLIER Switch to X 1 150 times 1 equals 15 Input Sensitivity Controls The SENSITIVITY controls allow independent setting of the input sensitivity of all amplifier channels to provide an ideal match for the signal source being used The most de sirable setting allows the control center to have a useful volume range as wide as possible from loud to soft ...

Page 16: ...s Filter Switches to the OUT posi tion In the 5 Channel Operating Mode channels 1 thru 4 oper ate as independent 50 watt amplifiers for the front and rear Loudspeakers channels 5 and 6 are Bridged for 400 watts of power output Refer to figures 8 and 9 along with page 10 of this Owner s Manual Input Source Set the Channel 3 4 INPUT SOURCE Switch to 3 4 and the Channel 5 6 INPUT SOURCE Switch to the...

Page 17: ...ss Filter Set the Channel 3 4 low pass filter to OUT Set the Chan nel 5 6 Low Pass Filter FREQUENCY Control to 100 and the MULTIPLIER Switch to X1 This will roll off frequen cies above 100Hz for channels 5 6 In the 3 Channel Operating Mode channel pairs of 1 and 2 3 and 4 and 5 6 are bridged This configuration pro vides two 200 watt channel amplifiers and one 400 watt amplifier Refer to figures 8 ...

Page 18: ...ace remove the suction cup and save it for future use 4 Remove the Phillips Screws holding the End Caps on both sides of the amplifier and lift the end caps off 5 Remove the two Phillips screws located between the low and high pass filter controls 6 Remove all 12 crossover equalizer and sensitivity knobs 7 Remove the Gold Faceplate Control Panel 8 Remove the fuses with needle nose pliers taking ca...

Page 19: ...19 MCC406M Block Diagram MCC406M Block Diagram ...

Page 20: ...20 ...

Page 21: ...21 Notes ...

Page 22: ... Bridged Mode with 4 ohm loads Dynamic Headroom 1dB Frequency Response 0 0 25dB from 20Hz to 20 000Hz 0 3dB from 10Hz to 50 000Hz Sensitivity 0 5Volts A Weighted Signal To Noise Ratio 105dB 1 5V High Pass Filter Variable from 5Hz to 5 000Hz 12 dB per octave Low Pass Filter Variable from 50Hz to 5 000Hz 12 dB per octave 24 dB per octave in Bridged Mode for Channels 5 and 6 Subwoofer Filter Low Pass...

Page 23: ...below failure to do so will result in shipping damage Make sure that the Top Glass Panel is firmly secured to the chassis using the supplied hex head screws Use the 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 Department of McIntosh Labo ratory Pleas...

Page 24: ...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 notice Printed in the U S A McIntosh Part No 040842 ...

Reviews: