Installation - McIntosh MX121 Owner's Manual

Installation

The MX121 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 MX121 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
MX121 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
MX121. Cool operation ensures the longest possible
operating life for any electronic instrument. Do not
install the MX121 directly above a heat generating
component such as a high powered amplifier. If all
the components 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 operating temperature.
When the MX121 is placed free-standing on a flat
surface, allow at least 2 inches (5.08cm) above the
top and 2 inches (5.08cm) on each side, so airflow is
not obstructed. Allow 19-1/2 inches (49.53cm) depth
behind the front panel. Allow 1-7/16 inch (3.66cm) in
front of the mounting panel for knob clearance.
A custom cabinet installation should provide the
minimum spacing dimensions for cool operation. Al-
low at least 2 inches (5.08cm) above the top, 2 inches
(5.08cm) below the bottom and 2 inches (5.08cm) on
each side, so airflow is not obstructed. The Custom
Cabinet should be open backed and at least 12 inches
(30.48cm) away from any surface such as a wall. Be
sure to cut out a ventilation hole in the mounting shelf
according to the dimensions in the drawing. Allow
1-7/16 inch (3.66cm) in front of the mounting panel for
knob clearance.
MX121 Front Panel
Custom Cabinet Cutout
Cabinet
Front
Panel
MX121 Side View
in Custom Cabinet
Support
Shelf
MX121 Bottom View
in Custom Cabinet
1 "
-1/16
2.7cm
Note: Center the cutout Horizontally
on the unit. For purposes of
clarity, the above illustration
is not drawn to scale.
17- "
3/16
43.7cm
Cutout Opening for Custom Mounting
Cutout Opening for Ventilation
Chassis
2 "
-1/4
Spacers
5.7cm
9 "
-1/8
23.2cm
15"
15"
Cutout 38.1cm
38.1cm
Opening
for
Ventilation
12 "
-5/16
31.3cm
Installation
6- "
9/16
16.7cm
9