16
Ventilation
This may be as good a time as any to have
“the talk” about ventilation. The Architect
model P250 EQ features a cool-running
efficient switch mode power-supply and
Class D amplifiers, and is equipped with
thermally controlled fans. This is a pow-
erful 2 channel amplifier, and therefore
requires plenty of good ventilation to
properly cool.
Please be advised that no more
than 4 Architect may be stacked
together. Any more than that,
then an empty rack space above
and below is required for adequate
ventilation.
Review the heat load specifica-
tions and ensure that your rack
room meets these requirements.
If the amplifier should overheat, a thermal
sensor will put it into standby mode,
allowing the heatsink to cool down.
Once the amplifier has cooled to a safe
operating temperature, the amplifier will
reactivate. If this occurs often, identify the
cause of the problem and take corrective
action, for example:
• Provide additional ventilation
• Do not install in a sealed location
with limited or no airflow
• Install a fan in the rack
• Make sure that the amplifiers are
not overloaded with speaker im-
pedances below the recommended
minimum
• Check that there are no short
circuits in the speaker cables or
speakers. Note: Each zone will shut
off independently when a short
circuit is detected.
1U
1U
1U
1U
1U
Ventilation
Ideal Spacing 1U rack space or more
above and below each pair
No more than four units can be
stacked without a rack space be-
tween them. Allow 1U rack space
or more above and below each
stack of four.
