Owner manual

INPUTWIRING

1)Useonlyshieldedcablesforallinputconnections.Cableswithshieldingfilmsorwith

highdensitybraidsarebetter.Thecablesshieldedusingtwistedstrands,eventhough

extremelyflexible,canbedamagedovertimeandcancausenoiseproblems.

2)Ifpossible,donotuseunbalancedlines;iftheymustbeused,cablesshallbeasshortas

possible.

3)Beforechangingtheconnectorsortheinputcables,turntheamplifierlevelcontroltothe

minimumposition(anticlockwise).

4)Beforechangingtheoutputconnections,turntheamplifierleveltotheminimumand

switchofftheACpowersupplytominimizethepossibilityofshort-circuitsonoutputs.

DISTRIBUITEDSPEAKERSYSTEMS

Thedistributedspeakersystemsformusicandpagingareoftenusedinhotels,restaurants,

offices,schools,etc.Inthesesystemsseveralspeakersarelocatedalloverthearea.

Thesemultispeakersystemsincludeoneamplifieroroneamplificationchannelthatdrives

oneormorespeakersequippedwithtransformers.

Thetransformersreducethelinevoltagetoalowerlevel,sotodrivespeakers,andare

connectedbetweentheconductorpair.Comparedtoasinglespeaker,thecombinationofa

transformerandaspeakeronthelinehasamuchhigherimpedancetowardtheamplifier,

andthismakesitpossibletoaddseveralspeakerstoasinglepowersignalline.

POWERAMPLIFIER

100V

CONNECTIONS

Standarddistributedspeakersystem