5
Installation
Installation
The MC257 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 MC257 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
MC257 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 MC257.
Cool operation ensures the longest possible operating
life for any electronic instrument. Do not install the
MC257 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 MC257 is installed together with other McIn-
tosh Components, check clearances on all components
before proceeding.
3
5
6
2
L
C
R
14-
11/16
"
37.30cm
17"
43.18cm
Cutout Opening for Custom Mounting
Opening for Ventilation
Cabinet Front Panel
MC257 Front Panel
Custom Cabinet Cutout
Cutout Opening for Ventilation
Support
Shelf
Chassis
Spacers
MC257 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.
MC257 Bottom View
in Custom Cabinet
6"
15.24cm
Opening
for Ventilation
10-1/2"
26.7cm
Cutout Opening
for Ventilation
16"
40.64cm
3"
7.62cm
