Power Switch; Mounting - Alesis Studio 12R Reference Manual

Power switch

The POWER switch is located on the back panel. A power indicator
is on the front panel next to the meter. Avoid turning the power
switch on or off while the Studio 12R is connected to a live
amplifier.

Mounting

The Studio 12R may be rack mounted in a standard EIA 19" rack, occupying three standard
1.75" rack spaces. Any angle of orientation is acceptable. Note that (as with most audio
equipment) if it is mounted into metal rack rails, the chassis ground of all units in the rack
will be connected together by the rail. In some cases this is desirable, but if hum is a
problem in the system, you may need to install non-conductive rack screws and washers on
the Studio 12R or other equipment in the rack to isolate the chassis grounds from each
other.
The mixer may also be used on a table top. To avoid scratching a tabletop surface, apply
rubber or felt feet to the bottom of the Studio 12R.
Studio 12R Reference Manual
Installation
8