JBL 1500 Service Manual
Also see for 1500 ARRAY: Owner's guide
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BASIC TROUBLESHOOTINGIf there is low (or no) bass output• Make sure the connections to the left and right “SpeakerInputs” have the correct polarity (+ and –).• Make sure the subwoofer is plugged into an active electricaloutlet.• Make sure the Power Switch is on.• In Dolby Digital or DTS modes, make sure yourreceiver/processor is configured so that the subwooferand LFE output are enabled.• Adjust the Subwoofer Level Control71500 Array Subwoofer |
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