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Safety Notices
viii ALESIS M20 REFERENCE MANUAL 1.06
9. Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other.
A grounding-type plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for your safety. When
the provided plug does not fit into your outlet, consult an electrician
for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. Use only attachments/accessories specified by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, rack, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-over.
Alesis recommends the use of standard 19” racks designed for use with professional audio
or music equipment, and the use of rear rack rail supports or sliders. In any installation,
make sure that injury or damage will not result from cables pulling on the apparatus and
its mounting.
13. Unplug this apparatus during lightning storms or when unused for long periods
of time.
14. Refer all servicing to qualified service personnel. Servicing is
required when the apparatus has been damaged in any way,
such as when the power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
15. This unit produces heat when operated normally. If this unit is installed in a rack, make
sure that there is proper ventilation when operated. Do not operate in an enclosed rack
with closed front and back doors. If there are other units in the rack that generate a large
amount of heat, spread them apart. Do not sandwich this product between two large
heat-producing units.
16. This product, in combination with an amplifier and headphones or speakers, may be capable of
producing sound levels that could cause permanent hearing loss. Do not operate for a long period
of time at a high volume level or at a level that is uncomfortable. If you experience any hearing
loss or ringing in the ears, you should consult an audiologist.