Installation
11
11 : 1.Location
The common installation of the amplier is in rack cabi-
nets: in order to limit the risk of mechanical damages, the
ampliers must be xed to the rack using both frontal and
rear mounting brackets.
Note: Instead of connecting the amplier to the power
grid directly, plug the amplier’s mains connections to a
power distribution panel inside the rack cabinet refer to
Chapter 11 : 4.AC mains supply for more details.
Install this amplier as far as possible from tuners and
TV sets. An amplier installed in close proximity of such
equipment may experience noise or generic performance
degradation.
11 : 2.Cooling
Install the amplier in a well-ventilated location: the ven-
tilation openings must not be impeded by any item such as
newspapers, tablecloths, curtains, etc; keep a distance of
at least 50 cm from the front and rear ventilation openings
of the amplier.
All Powersoft ampliers implement a forced-air cooling
system to maintain low and constant operating tempera-
tures. Drawn by the internal fans, air enters from the front
panel and is forced over all components, exiting at the back
of the amplier.
The amplier’s cooling system features “intelligent” var-
iable-speed DC fans which are controlled by the heatsink
temperature sensing circuits: the fans speed will increase
only when the temperature detected by the sensors rises
over carefully predetermined values. This ensures that fan
noise and internal dust accumulation are kept to a strict
minimum.
Should however the amplier be subject to an extreme
thermal load, the fan will force a very large volume of air
through the heat sink. In the extremely rare event that the
11 : 3.Cleaning
Always use a dry cloth for cleaning the chassis and the
front panel. Air lter cleaning should be scheduled according
to the dust levels in the amplier’s operating environment.
Disconnect the AC main source before
attempting to clean any part of the amplifier
In order to clean the vent lters you need to remove the
front cover: never attempt to open any other part of the unit.
By means of a metric hex key #6, unscrew the two
screws located on the left and right sides of the front panel,
(ref. FIGURE 8) gently lift the cover and remove the lter. You
may use compressed air to remove the dust from lters, or
wash it with clean water: in the latter case ensure that the
lter is dry before reassembly.
amplier should dangerously overheat, sensing circuits
shut down all channels until the amplier cools down to a
safe operating temperature. Normal operation is resumed
automatically without the need for user intervention.
X Series ampliers can be stacked one on top of the other
due to the efcient cooling system they are equipped with.
There is however a safety limit to be observed: in case
a rack with closed back panels is used, leave one rack unit
empty every four installed ampliers to guarantee adequate
air ow.
Mounting
Brackets
Air ow
FIGURE 7: Mounting brackets and air flow direction.
FIGURE 8: Use a #6 hex key to remove the front cover.
Installation | 9
4 amp stacked
1 unit space every
4 amp stacked into
closed rack cabinet
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