JBL PSW1000 Owner's Manual
Also see for PSW1000: Service manual
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CROSSOVER FREQUENCYUse the crossover frequency knobto adjust the upper end of thesubwoofer's frequency response.The crossover control determinesthe highest frequency yoursubwoofer will reproduce. It allowsa seamless transition fromsubwoofer to satellite speakers.When using small satellitespeakers (without much low end),you want the crossover frequencymore toward the upper end(150 Hz) to fill in the sound yoursatellites can't reproduce. Whenusing larger main speakers, asetting more towards the 90 Hzend gives a smoother transitionfrom your PSW subwoofer to yourmain speakers. Experiment untilyou find a setting that meets yoursatisfaction.Your PSW subwoofer turns itseffoff internally. For extendedperiods of non-use (i. e.; vacations,etc.) you may wish to unplug thePSW subwoofer.PLACEMENT- CAUTION: Donot place your PSW subwoofernext to heaters, furnaces, or anyother heat sources. Be sure not topinch or compress the powercord.Since the low frequenciesproduced by your PSW subwooferare non-directional, the placementof your subwoofer is not critical.You may place it under an endtable, next to the wall, next toT.V., anywhere you would like.However, the closer thesubwoofer is to walls, the morebass will be realized. Cornerplacement will result in maximumbass output.Use the POLARITY switch tomaintain proper acousticsummation with the mainspeakers. Listen to your PSWsubwoofer and main speakerswith the switch on "0 °'', then listento the same material with theswitch on "180 °'' . Decide which Qway sounds better and leave theswitch in this position. You shouldrepeat this procedure if you moveyour PSW subwoofer to anotherpart of the room.ALC PROTECTION CIRCUITRYYour PSW series amplifier has abuilt-in Automatic Level Controlcircuitry that comes onautomatically when subjected tohigh input signal levels. It helps toprotect the subwoofer driver frombeing damaged by accidental mis-use, assuring you of many yearsof excellent performance.GENERAL CAREUse a damp cloth for cleaningyour PSW subwoofer cabinet.Do not use detergents or othercleaners.TROUBLESHOOTING / SERVICEYour PSW subwoofers shouldonly be serviced by anauthorized JBL repair station.Woofers are replaceable byrepair station only. Do notremove the amplifier from thecabinet. There are no userserviceable parts inside.Before seeking service for yourPSW subwoofer, please re-checkall connections as outlined in thismanual. Verify that your AC wallpower source is working properlyby checking with anotherappliance.9 |
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