JBL 305 User Manual

Also see for EON305: User guide Instructions User guide User manual

Contents

JBL 305 User Manual Manual pdf 7 page image

7THIS APPARATUS CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK ORHAZARD, DO NOT REMOVE CHASSIS, INPUT MODULE OR AC INPUT COVERS. NO USER SERVICEABLEPARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.Mounting / Suspending EON® SpeakersEON speakers are designed for portable applications in which the speakers will be stacked directly on the floor,stage, speaker stands, or a solid, stable platform. When placed on a smooth surface such as polished woodor linoleum, the speakers may move due to acoustical energy output. Precautions should be taken to assurethat the speaker does not fall off the stage or table on which it is placed. Optional accessory items are availablefrom JBL Professional and after-market suppliers to facilitate suspension and wall /ceiling mounting of EONspeakers. Only those items recommended by JBL Professional should be used. When using these items, reviewall enclosed documentation and carefully follow all instructions and safety precautions.CAUTION: Suspension of EON ® speakers should be done by qualified persons following safe rigging standardsand practices. Unsafe mounting or overhead suspension of any heavy load can result in serious injury andequipment damage.CAUTION: When suspending this product carefully follow JBL instructions and local ordinances. Do not attemptto use unless you have read and understood all instructions including the JBL User’s Guide. Attachment of theloudspeaker to a supporting structure should be referred to a qualified professional.Stand Mounting Safety PrecautionsEON series full range models include a 36 mm receptacle cup to allow mounting on tripod stands or on a poleover subwoofers. When using stands or poles, be sure to observe the following precautions:• EON speakers include a thumb-screw that must be tightened to secure the speaker to the tripod stand. Beforemounting the speaker on the stand, be sure to loosen the screw so that it doesn’t prevent the pole from fullypenetrating the socket.• Check the stand or pole specification to be certain the device is designed to support the weight of the speaker.Observe all safety precautions specified by the manufacturer.• Always verify that the stand (or subwoofer/pole) is placed on a flat, level and stable surface and be sure to fullyextend the legs of tripod type stands. Position the stand so that the legs do not present a trip hazard.• Route cables so that performers, production crew, and audience will not trip and topple the speakers over.• Inspect the stand (or pole and associated hardware) before each use and do not use equipment with worn,damaged or missing parts.• Do not attempt to place more than one EON series speaker on a stand or pole.• Always be cautious in windy, outdoor conditions. It may be necessary to place additional weight (i.e. sandbags)on the base of the stand to improve stability. Avoid attaching banners or similar items to any part of a speakersystem. Such attachments could act as a sail and topple the system.• Unless you are confident that you can handle the weight of the speaker, ask another person to help you get itonto the tripod stand or pole.Hearing Damage, Prolonged Exposure to Excessive SPLEON series loudspeakers are easily capable of generating sound pressure levels (SPL) sufficient to causepermanent hearing damage to performers, production crew and audience members. Caution should be takento avoid prolonged exposure to SPL in excess of 90 dB.