Zenith 13K2 Amplifier Manual
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always use the original packaging materials.
5.2 Mounting
Free airflow from front-to -rear of the amplifier must
be possible. Therefore, no doors or rack-lids should
be mounted in front of or behind the amplifiers.
Amplifiers may be stacked directly on top of each
other. There is no need for spacing in between units,
though this might enable more convenient
installation of cabling on the rear panel.
It is recommended that rear supports be mounted
for maximum long-term stability. Rear support
brackets are included.
5.2.1 Rear support bracket
2 rear support brackets are included with the
amplifier.
Alternative 1:
Use screw and washer for fixed installation.
Alternative 2:
Use two screws and washer for fixed installation.
5.3 Cooling
The amplifier uses a forced-air cooling system with
airflow from front to rear, maintaining a low
operating temperature within defined limits. Front-to-
rear airflow is preferred as cooler air is present at
the front in nearly all applications. (This allows
higher continuous power levels without encountering
thermal problems.) Never attempt to reverse the
airflow. The amplifier modules require a pressure
chamber between the fans and heat sink, and this
effect functions only in one direction.
Make sure that there is an adequate air supply in
front of the amplifier, and that the rear of the
amplifier has sufficient space to allow the exhaust to
escape. If the amplifier is rack-mounted, do not use
covers or doors on the front or rear of the rack.
Should a heat sink overheat, the temperature
sensing circuits will mute the overheating channel. If
