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Connections: Chapter 2
12 RA150/300/500 Reference Manual
MOUNTING ON A SHELF OR IN A
NON-RACK ENCLOSURE
To mount the amplifier on a shelf or other flat
surface, Alesis recommends using the enclosed
stick-on feet to avoid scratching the shelf’s surface
with the amplifier bottom. To properly mount the
stick-on feet:
1 Place the amplifier upside down on a clean
cloth or piece of cardboard so the amp top does
not scratch your work surface.
2 Clean the bottom of the amp where you plan to
stick the feet. Isopropyl alcohol is recommended
as a cleaning agent. This step insures that no
small amounts of oil or other substances will
inhibit proper adhesion of the feet.
3 When the surface has dried, attach the feet.
Please observe the comments on thermal
considerations given under “Temperature
Considerations in Rack Mounting” no matter where
or how the amp is mounted.
AVOIDING ELECTROMAGNETIC
INTERFERENCE
Because the RA150/300/500 contains a large power
transformer, we recommend that you do not:
• Place the RA150/300/500 next to an unshielded
video monitor, as the magnetic fields may
distort the image.
• Place tapes, disks, or other magnetic media
close to the RA150/300/500.
• Play guitar, bass, or any other instrument with
magnetic pickups near the RA150/300/500. No
damage will occur but AC fields may enter the
pickups, causing hum.