APart CHAMP-2 [12/16] Rack mounting and wiring

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Champ-2canbemountedina19”rack,takinguponly1rackspace.Alwaysallowagoodairow

aroundtheamplier’sfront,rear,side,topandbottom.Wheninstallinginarackwithmultipleaudio

devices, it is compulsory to leave one rack space between units. Fill the empty rack spaces with

meshedblindpanelsforimprovedventilation.Nevermounttheamplierinasealedcabinet,unless

adequateforcedventilationisprovided.Theampliermaynotbeabletomeetthespecications

when installed in a poorly ventilated environment. Support the unit at the rear when installing in a

rack !

Always remember: excessive heat is one of your amplier’s biggest enemies !

4. Rack mounting and wiring

When wiring an audio rack, it is a good installation practice to route all AC wiring

along one side of the rack and all audio wiring along the other side to avoid coupling

mains cable interference into the audio path. Please use only high quality signal

and speaker cables and connectors. Pay special attention to avoiding ground loops

when installing audio devices in metal racks, use special insulating rack mounting

hardware, such as the so called ‘humfrees’. This mounting hardware will make sure

that several devices mounted in a rack will be electrically isolated from the rack, and

thus are a great help in avoiding ground loops. Any damage caused by user induced

ground loops are not covered by warranty ! Ground loops can cause hum or other

strange side effects that will affect stable and safe operation of audio hardware and

peripheral devices. Ground loops are often created by connecting tuners to cable

distribution sockets. Use a RF isolating transformer whenever there is a cable signal

tuner or digital TV tuner in the audio path !