Audio Research Reference 750 SE, Manual

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5
To prevent fire, or shock hazard, do not expose
your Reference 750 SE to rain or moisture.
Do not place objects containing water on top
of this unit.
This unit contains voltages which can cause
serious injury or death. Do not operate with
covers removed. Refer servicing to your
authorized Audio Research dealer or other
qualified personnel.
The detachable power cord on your
Reference 750 SE is equipped with a heavy
gauge, 3-conductor cable and a standard
three-prong grounding plug. For absolute
protection, do not defeat the ground power
plug. This provides power line grounding
of the Reference 750 SE chassis to provide
protection from electrical shock.
The appliance coupler (a.c. power connector)
at the rear of this unit must be accessible for
emergency power disconnect.
For continued protection against fire hazard,
replace the fuse only with the same type and
rating as specified at the fuse holder.
The power button on the front of this unit,
when off, does not disconnect all power from
this unit. This unit is in sleep mode when
not on.
This unit is RoHS compliant.
Note:
Always mute the preamplifier
when cueing a phono cartridge stylus up
or down.
Due to the immense power supply reserves,
unusually high power output, and wide
bandwidth of the Reference 750 SE, added
emphasis must be placed on use of your
preamplifier’s mute switch from a safety
standpoint. A transient signal burst or “pop”
such as caused by tonearm cueing, accidental
dropping or brushing of the phono cartridge
stylus-even at a normal listening level-could
cause an instantaneous peak power demand
on the amplifier of up to 1000 watts (which
the Reference 750 SE will try to deliver). The
importance of lowering the preamplifier
volume level to a minimum setting and
activating the mute switch whenever cueing
the tonearm or making contact with the phono
cartridge stylus cannot be over-emphasized.
Adhering to this precautionary muting
procedure is equally important when turning
your system on or off and when connecting
or disconnecting any cables in the system.
Carefully following this recommendation will
minimize the chance of causing undue stress
and potential damage to your amplifiers and
loudspeakers. (See our preamplifier Owner’s
Manual for more detailed instruction on use
of muting provisions.)
A note about packaging...
Save all packaging in a dry place away
from fire hazard. Your Reference 750 SE
amplifier is a precision electronic instrument
and should be properly cartoned any
time shipment is made. You may not
have occasion to return your unit to the
factory for service, but if that should prove
necessary, or other occasion requiring
shipment occurs, the original packaging
will protect your Reference 750 SE
from unnecessary damage or delay.
Warnings