APart-Audio REVAMP4240T, Instruction Manual

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12
CLASS-D POWER AMPLIFIER
!!! IMPORTANT !!!
This amplifier relies on convectional and active cooling. In normal
situations, overheating will not occur. The unit can be built in a 19
inch rack system, but it is forbidden to block the ventilation holes
provided. Therefore, it is absolutely necessary to allow at least one
free rack space or 44 mm above and beneath the amplifier. Make
sure the ambient temperature is between 0 and 35°C. Operating
the unit beyond its normal limits will result in excessive internal
temperature. Power amplifiers are hard workers, and their behavior
is similar to human beings. In extreme conditions, human beings are
not able to perform efficiently. This also applies to amplifiers. It is
generally a bad idea to mount multiple heat generating units such
as amplifiers in the same rack. If necessary, use an additional forced
ventilation system in your mounting rack.
Two mains fuses are located inside the unit. When the fuse(s) is
(are) broken, replace it with a fuse of the same current and voltage
rating: 5 AT/250V. For qualified personnel only!
This unit has NOT been designed for use in mobile applications,
such as: mobile discobars and DJ setups, mobile PA systems, Live
bands, audio rental systems, …
Use it in fixed installations only.
Before using the amplifier for the first time, check the impedance
of your 100 volt speaker lines using the Apart IMPMET: temporarily
disconnect the speaker line from the amplifier and measure the
speaker line. Impedance @ 100 volt must be 42 ohms or more. This
value corresponds to 240 watts @ 100 volt.