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5

Installation

Installation

The MC312 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 MC312 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 

MC312 is removed from the custom installation and 

used free standing. The required panel cutout, ventila-

tion cutout and unit dimensions are shown.

Always provide adequate ventilation for your MC312. 

Cool operation ensures the longest possible operating 

life for any electronic instrument. Do not install the 

MC312 directly above a heat generating component 

such as a high powered amplifier. If all the compo-

nents are installed in a single cabinet, a quiet running 

ventilation fan can be a definite asset in maintaining 

all the system components at the coolest possible oper-

ating temperature.

A custom cabinet installation should provide the fol-

lowing minimum spacing dimensions for cool opera-

tion.

Allow at least 6 inches (15.24cm) above the top, 2 

inches (5.08cm) below the bottom, 3 inches (7.62cm) 

behind the rear panel and 2 inches (5.08cm) on each 

side of the Power Amplifier, so that airflow is not 

obstructed. Allow 7/8 inch (2.22cm) in front of the 

mounting

1

 panel for clearance. 

Be sure to cut out a 

ventilation hole in the mounting shelf according to 

the dimensions in the drawing.

1

 When the MC312 is installed together with other McIn-

tosh Components, check clearances on all components 

before proceeding.

14-

11/16

"

  37.30cm

   17"

43.18cm

Cutout Opening for Custom Mounting

Opening for Ventilation

Cabinet Front Panel

MC312 Front Panel 

Custom Cabinet Cutout

Cutout Opening for Ventilation

Support

Shelf

Chassis

Spacers

MC312 Side View

in Custom Cabinet

Cabinet

Front

Panel

Note: Center the cutout Horizontally

          on the unit. For purposes of 

          clarity, the above illustration

          is not drawn to scale.

MC312 Bottom View

in Custom Cabinet

    6"

15.24cm

Opening

for Ventilation

12-

3/4

"

32.38cm

Cutout Opening

for Ventilation

  16"

40.64cm

   3"

7.62cm

Содержание MC312

Страница 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MC312 Power Amplifier Owner s Manual...

Страница 2: ...rtant Additional Operation Information Guide Thank You and Please Take a Moment 2 Technical Assistance and Customer Service 2 Table of Contents 2 General Information 2 Connector and Cable Information...

Страница 3: ...n though the power line varies Illuminated Power Meters The Illuminated Power Output Watt Meters on the MC312 are peak responding and indicate the true power output of the amplifier The Peak Watt Hold...

Страница 4: ...for your MC312 Dimensions Front View of the MC312 Rear View of the MC312 Side View of the MC312 17 1 2 44 5cm 8 7 8 22 5cm 9 7 16 24 0cm 11 3 4 29 9cm 16 13 16 43 0cm DISABLED 20 50 8cm 3 16 0 5cm 16...

Страница 5: ...ble oper ating temperature A custom cabinet installation should provide the fol lowing minimum spacing dimensions for cool opera tion Allow at least 6 inches 15 24cm above the top 2 inches 5 08cm belo...

Страница 6: ...n tosh Component Unbalanced INput RIGHT Channel for an audio cable from a Preamplifier or A V Con trol Center audio output Unbalanced OUTput RIGHT Channel for an audio cable to the next Power Amplifie...

Страница 7: ...McIntosh MC312 Power Amplifier is designed for Loudspeakers with an impedance of 2 ohms 4 ohms or 8 ohms Connect a single Loudspeaker only to the Right and Left Output Terminals When connecting Loudsp...

Страница 8: ...Loudspeaker s impedance is in between the available connections use the nearest lower impedance connection Refer to General Informa tion Note 3 on page 2 for additional information WARNING Loudspeake...

Страница 9: ...ptional hookup is to use unbalanced cables and place the INPUT MODE Switch in the UNBALANCED Position 4 Connect XLR cables from the MC312 Power Amplifier 1 Audio Balanced OUTput LEFT and RIGHT to the...

Страница 10: ...uarter of a turn 90 Do not over tighten Refer to figure E on page 9 8 Referring to figure H connect the Loudspeaker hookup cables with ba nana plugs into the hole at the top of the terminal to the MC3...

Страница 11: ...11...

Страница 12: ...the display modes of the Power Output Meter and Meter Illumination Meter indicates the Right Channel Output of the amplifier LED indicates when the LEFT Channel Amplifier POWER GUARD circuit activate...

Страница 13: ...MC312 and the Audio Preamplifier or A V Con trol Center in order for the remote power turn on to function Meter Selection Rotate the meter mode switch to select the meter operation mode you desire Re...

Страница 14: ...can deliver the best possible performance from any type of high quality loudspeaker system Refer to figure 14 Creating an amplifier with this level of perfor mance did not come easily Many months of...

Страница 15: ...at is lower than optimum causes more output current to flow which results in extra heat being generated in the power output stage This increase in temperature will result in a reduced life expectancy...

Страница 16: ...se in sonic perfor mance with this circuit and it ensures safe operation of the amplifier under even the most extreme operat ing conditions The different types of protection circuits incorporated in t...

Страница 17: ...ntrol Out Jacks The Power Control signal from these jacks is delayed by a fraction of a second so that the turn on power surge of the next power amplifier occurs at a later time This helps prevent pow...

Страница 18: ...tor Greater than 40 Input Impedance 22 000 ohms Balanced 22 000 ohms Unbalanced Voltage Gain 29dB 8 Ohms 26dB 4 Ohms 23dB 2 Ohms Power Guard Less than 2 Total Harmonic Distortion with up to a 14dB ove...

Страница 19: ...shipping damage 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 writ...

Страница 20: ...cts is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice Printed in the U S A McIntosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 www mcin...

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