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DA-2800 Operating Instructions V0.4
1.2 Installation: Mounting
The DA-2800 amplifier is sized for a standard 19" rack mount, with four front panel mounting holes and
two rear mount lateral holes. The amplifier must be fixed into the rack at both the front and back to
avoid mechanical damage. Your DA-2800 amplifier uses a forced-air cooling system to maintain a low,
even operating temperature. Drawn by an internal fan, air enters through the slots in the front panel
and flows over and through components. The DA-2800 features an ‘intelligent’ variable-speed DC fan
that is controlled by heat sink temperature sensing circuits. Fan speed increases only when the
temperature of the heat sink requires it, keeping fan noise to a minimum and helping to cut dust
accumulation inside. Under extreme thermal load, the fan will force a very large volume of air through
the heat sink. If the heat sink gets too hot, its sensing circuit will reduce the output power. If the
amplifier overheats, another sensing circuit shuts down its circuit to cut off power until it cools to a
safe temperature.
The exhaust cooling air is forced out through the rear of the chassis (see below), so make sure there
is enough space around the sides of the amplifier to allow the air to escape. If it is rack mounted,
make sure the exhaust air can flow without resistance. Amplifiers may be stacked directly on top of
each other (no space needed between units), starting from the bottom of the rack.