Audio Research Reference 250 SE, Руководство пользователя

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In your system
To insure normal component life and safe
operation this unit must be operated
only in an upright position. Adequate
airflow and proper cooling can occur only
if there are no restrictions above and
behind the unit and on either side. Be sure
that airflow to the 12V D. C. cooling fan
located on the rear panel is not blocked.
The special non-marring elastomer feet
provide adequate spacing and stability
only on a smooth, hard surface, and
also assist to isolate the amplifier from
spurious vibrations. For upright stability
and best performance, never operate
the unit while it is sitting on a soft
surface such as a thick rug or carpet.
Due to its weight, this amplifier must
be supported on a surface specifically
rated for such a load. Check with the
manufacturer of your support system to
be sure it is rated to handle this weight.
If the unit is to be operated in an enclosure
such as an equipment rack, make certain
that adequate airflow above and to
each side of the unit is provided.
The ‘ambient’ operating temperature should
never exceed 120° F or 49° C. Improper
installation will cause premature tube
failure and will affect your warranty,
as well as the service life of the unit.
It is normal for a vacuum tube power
amplifier to run quite warm, and if used
for prolonged periods, hot to the touch.
All components within are, however,
operated at safe, conservative levels
and will not be improperly affected
thereby, providing the requirements
outlined above are adhered to.
Installation