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1. Save the carton and packing
material even if the equip-
ment has arrived in good
condition. Should you ever
need to ship the unit, use only
the original factory packing.
2. Read all documentation
before operating your equip-
ment. Retain all documenta-
tion for future reference.
3. Follow all instructions
printed on unit chassis for
proper operation.
4. Do not spill water or other
liquids into or on the unit,
or operate the unit while
standing in liquid.
5. Make sure power outlets
conform to the power
requirements listed on the
back of the unit.
6. Do not use the unit if the
electrical power cord is
frayed or broken. The
power supply cords should
be routed so that they are not
likely to be walked on or
pinched by items placed
upon or against them, paying
particular attention to cords
and plugs, convenience
receptacles, and the point
where they exit from the
appliance.
7. 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.
8. Mains voltage must be cor-
rect and the same as that
printed on the rear of the
unit. Damage caused by con-
nection to improper AC voltage
is not covered by any warranty.
9. Have gain controls on ampli-
fiers turned down during
power-up to prevent speaker
damage if there are high signal
levels at the inputs.
10. Power down & disconnect
units from mains voltage
before making connections.
11. Never hold a power switch
in the “ON” position if it
won’t stay there itself!
12. Do not use the unit
near stoves, heat registers,
radiators, or other heat
producing devices.
13. Do not block fan intake or
exhaust ports. Do not oper-
ate equipment on a surface or
in an environment which
may impede the normal flow
of air around the unit, such as
a bed, rug, weathersheet, car-
pet, or completely enclosed
rack. If the unit is used in an
extremely dusty or smoky
environment, the unit should
be periodically “blown free”
of foreign matter.
14. Do not remove the cover.
Removing the cover will
expose you to potentially dan-
gerous voltages. There are no
user serviceable parts inside.
15. Connecting amplifier out-
puts to oscilliscopes or
other test equipment while
the amplifier is in bridged
mode may damage both the
amplifier and test equipment!
16. Do not drive the inputs
with a signal level greater
than that required to drive
equipment to full output.
17. Do not connect the inputs /
outputs of amplifiers or
consoles to any other volt-
age source, such as a battery,
mains source, or power sup-
ply, regardless of whether the
amplifier or console is turned
on or off.
18. Do not run the output of
any amplifier channel back
into another channel’s
input. Do not parallel- or
series-connect an amplifier
output with any other
amplifier output. Crest
Audio is not responsible for
damage to loudspeakers for
any reason.
19. Do not ground any red
(“hot”) terminal. Never
connect a “hot” (red) out-
put to ground or to another
“hot” (red) output!
20. Non-use periods. The power
cord of equipment should be
unplugged from the outlet
when left unused for a long
period of time.
21. Service Information
Equipment should be ser-
viced by qualified service
personnel when:
A. The power supply cord
or the plug has been dam-
aged;
B. Objects have fallen, or
liquid has been spilled into
the equipment;
C. The equipment has
been exposed to rain;
D. The equipment does
not appear to operate normal-
ly, or exhibits a marked
change in performance;
E. The equipment has
been dropped, or the enclo-
sure damaged.
22. To obtain service, contact
your nearest Crest Audio
Service Center, Distributor,
Dealer, or Crest Audio at
201.909.8700 (USA).
Power Amplifiers
Important Precautions
This symbol is used to
alert the operator to fol-
low important operating
procedures and precau-
tions detailed in docu-
mentation.
This symbol is used to
warn operators that
uninsulated “dangerous
voltages” are present
within the equipment
enclosure that may pose
a risk of electric shock.