JBL 8340 Specifications

Contents

key features

8340 High Power Cinema SurroundSpeaker for Digital ApplicationsProfessional SeriesKey Features:Approved by Lucasfilm, Ltd. forT H X®installationsD Crossover switchable betweenISO2969 cinema surround rolloffand flat responseUniform horizontal and verticalcoverageFrequency range: 45 HZ - 18 kHzHigh Sensitivity: 96 dB (1 W, 1 m)High Power Handling Capability:150 watts pink noiseSimilar size enclosure to thesuccessful 8330, allowing simpleinstallation into existing systemsIn-cabinet mounting hardwareaccepts JBL 2502 wall bracketsfor fast installationThe 8340 Cinema SurroundSpeaker offers high power handlingcapability, high sensitivity andextended bass response in anextremely compact enclosure. Thetwo-way 8340 incorporates theproven reliability and performancefeatures found in the industry stan-dard JBL 8330 Surround LoudspeakerSystem and is designed to accuratelyreproduce the extended dynamicrange and frequency response charac-teristics required by digital soundformats.The 8340 incorporates a high-power, long-throw 250 mm (10 in)low frequency transducer whichextends the frequency response tobelow 50 Hz. The low frequencydriver features an SFG™ (SymmetricalField Geometry) magnet structurewhich lowers second harmonic distor-tion to inconsequential levels. Thehigh frequency section incorporatesa 19 mm (¾ in) compression driver/horn combination capable of veryhigh output power. The true constantdirectivity coverage (100° horizontalby 60° vertical), combines with a verysmooth off-axis design in the cross-over range to provide the same soundcharacter to all seats.Specifications:SYSTEM:Frequency Range (— 10 dB): 45 Hz - 18 kHzPower Rating¹: 150 watts continuous pink noiseSensitivity²: 96 dB, 1 watt (2.83 V) at 1 meter (3.3 ft)Nominal Impedance: 8 ohmsCrossover Frequency: 2kHzDownward Firing Angle: Nominal 15° when mounted flush on back panelHigh Frequency Contour Switch: 2 positions: Flat and IS02969 Curve X surround contourPolarity:Nominal Diameter: 280 mm (10 in)Voice Coil Diameter: 50 mm (2 in)HF DRIVER/HORN:Nominal Diameter: 19 mm (¾ in)Voice Coil Diameter: 25 mm (1 in)Characteristics: Ferro-fluid cooledCoverage Pattern: 100° H x 60° VGENERAL:Finish: Black vinylGrille Color: Dark grayInput Terminations: Dual five-way binding postsDimensions: 539 mm x 481 mm x 304 mmH x W x D 21¼ in x 19 in x 12 inSystem Net Weight: 50 Ibs.¹ Raring based on test signal of IEC filtered random noise with a peak-to-average ratio of 6 dB, two hours dnration.² Sensitivity is based on a swept 500 Hz to 2.5 kHz signal for an input of 2.83 V @ 8 ohmsJBL continually engages in research related to product improvement. New marerials. production methods, and designrefinements are introduced into existing products without notice as a routine expression of that philosophy. For thisreason. any current JBL product may differ in some respect from its published description. but will always equal orEIA, red = “ + ”L O W F R E Q U E N C Y L O U D S P E A K E R :exceed the original design specifications unless otherwise stated

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