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1
Save the carton and packing mate-
rials! Should you ever need to ship the unit,
use only the original factory packing.
For replacement packaging, call Crest Audio’s
Customer Service Department directly.
2
Read all documentation before
operating your equipment. Retain all
documentation for future reference.
3
Follow all instructions printed on
unit chassis for proper operation.
4
Do not use the unit if the electrical
power cord is frayed or broken.
The power supply cord should be routed so
that it is not likely to be walked on or pinched
by items placed upon or against it.
5
Always operate the unit with the
AC ground wire connected to the
electrical system ground. Precautions
should be taken so that the means of
grounding of a piece of equipment is not
defeated.
6
Damage caused by connection to
improper AC voltage is not cov-
ered by any warranty.
7
Do not spill water or other liquids
into or on the unit, or operate the
unit while standing in liquid.
8
The power cord of equipment
should be unplugged from the out-
let when left unused for a long
period of time.
Service Information
Do not open unit!
Opening the unit will expose you to poten-
tially dangerous voltages. There are no user
serviceable parts inside.
Equipment should be serviced by
qualified service personnel when:
A. The equipment has been exposed to rain.
B. The equipment does not appear to operate
normally, or exhibits a marked change in
performance.
C. The equipment has been dropped, or the
enclosure damaged.
To obtain service:
contact your nearest Crest Audio Service
Center, Distributor, Dealer,
or Crest Audio at
Phone: 866-812-7378
USA
or visit www.crestaudio.com for additional
information.
email techserve@crestaudio.com
This symbol is used to alert
the operator to follow important
procedures and precautions
detailed in documentation.
This symbol is used to warn opera-
tors that uninsulated “dangerous
voltages” are present within the
equipment enclosure that may
pose a risk of electrical shock.
X 18R / X 20R Owner’s Manual
Important Precautions