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ECS-650-IC Owner’s Manual
SPEAKER WIRING
Overview
Ina70Vor100Vsystem,aspeakerwireisrunfromtheamplier location to the rst speaker location.A
“loopout”isrunfromtherstspeakertothesecondspeaker,thesecondspeakertothethirdspeaker,etc.If
installingwithastandardreceiver/amplier(not70Vor100Vsystem),aseparatespeakerwiremustberun
fromtheampliertoeachspeakerlocation.
Best Practices
• Inmostcases,itiseasiesttoinstallaspeakersystembyprewiringandtheninstallingthespeakers.
• Planthelocationsofthespeakerholes,volumecontrolboxes,andtheamplierandbesurewiringcanbe
routed everywhere necessary before cutting any holes.
• Installsparewiresforredundancywhenyoumustrunwirethroughalocationthatwillnotbeaccessible
later.
• Whenyouaren’tenclosingspeakerwirefullyinconduit,makesuretoleaveenoughofawireloopforthe
speaker wiring to allow you to connect the terminal to the loudspeaker either on the ground, or at the top
oftheladder.Ashortwireloopmakesattachingthespeakerwiresmoredifculttoworkwithatthetopof
the ceiling grid.
Recommended Wiring
• 70/100voltapplications:18AWG,stranded,2conductorcable.
• 8ohmapplications:16or14AWG,stranded,2conductorcable.
Note: Some ceilings are rated for use as a plenum return for heating and cooling. In these areas, you must use plenum type
cable to pass building inspection. Consult with local building code enforcement to determine the requirements of each job.
Wiring Connections
1. Remove the access plate on top of the speaker (see illustration) and remove the set screw terminal
connector. If using a conduit to route wiring into the speaker, attach the makeup access plate to the conduit
ttingsbeforeattachingthewirestotheconnector.
2. Striptheinsulationoneachconductorback¼inchanduseyoursmallatheadscrewdrivertosecureeach
wire into the connector. Make sure no loose strands short between the + and – connection and that the
polarityiscorrect.Thereare2+and–connectionsontheterminalforeaseofattachingaloopoutwire
to additional speakers. You may connect to either the inner or the outer connection, but we recommend
keepingthewiringconsistentamongallofyourspeakers.Forexample,usetheinnerconnectionforyour
speakerconnectionandusetheouterconnectionforyourloopouttothenextspeaker.
3. Re-attach the connector and cover plate. Do not use the back plate cavity as a junction for wiring that is
not powering the speaker.