19
Installation Manual
Subwoofer Amplifier
RS 500
Ventilation
Ventilation
This may be as good a time as any to have
“the talk” about ventilation. The RS 500
features cool-running efficient switch
mode power supplies and Class D amplifi
-
ers, and they are equipped with thermally
controlled fans. They are still powerful
amplifiers, and therefore require plenty of
good ventilation to properly cool.
Please be advised that no more than 4 RS
500 models may be stacked to-
gether. Any more than that, then
a 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 impedances
below the recommended minimum
Check that there are no short circuits
in the speaker cables or speakers.
Note: Each zone will shut off inde
-
pendently when a short circuit is
detected.
1U
1U
Ideal Spacing 1U rack space or more
above and below each pair
1U
1U
1U
No more than four units can be stacked
without a rack space between them.
Allow 1U rack space or more above and
below each stack of four.
