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Amplifiers. Applications. Data. Downloads. Documentation. Accessories. J subwoofer The J-SUB is an actively driven 2-way bass-reflex design housing three long excursion neodymium 18" drivers, two drivers face to the front and one driver to the rear. The cardioid dispersion pattern resulting from this approach avoids unwanted energy behind the system that greatly reduces the reverberant field at low frequencies and provides the greatest accuracy of low frequency reproduction. J-SUB cabinets can be used to supplement J8 and J12 loudspeakers in various combinations, ground stacked or flown, either integrated on top of a J8 / J12 array or as a separate column. The J-SUB cabinet is constructed from marine plywood and has an impact and weather protected PCP (Polyurea Cabinet Protection) finish. The front and rear of the loudspeaker cabinet are protected by a rigid metal grill and the side panels incorporate eight handles. Four 100 mm wheels and one EP5 or NL8 connector are mounted at the rear. Amplifiers The J-SUB can only be driven by d&b's D12 dual channel amplifier configured for the J-SUB. More detailed information on specific loudspeaker setups with the D12 amplifier is available either in the relevant loudspeaker or D12 manual. Applications Live-music   Playback   Speech   Stage monitor   Subwoofer Data Components 3 x 18" driver Max. sound pressure (1 m, free field) with D12 138 dB SPL Power handling capacity (RMS / peak 10 ms) front 800 / 3200 W Power handling capacity (RMS / peak 10 ms) rear 400 / 1600 W Frequency response (-5 dB) 32 Hz - 70 / 100 Hz Cabinets per D12 1   Dimensions mm (h x w x d) 540 x 1100 x 945 / 1063 Weight kg 106 Dimensions inch (h x w x d) 21.3 x 43.3 x 37.2 / 41.8 Weight lb 234 Application information is presented for guidance only. We reserve the right to make any necessary changes to the products and the published specification. As part of our ongoing product development program we try, where possible, to maintain the highest degree of product compatibility.    recommended use    SPL max peak, test signal: pink noise with crest factor 4    INFRA mode    dimensions without wheels Top of the page. Downloads Polar data Array calculators CAD drawings 2D/3D Documentation PDF Title Language Date Size Declaration of Conformity Loudspeaker/Amplifiers (CE) Int 14.10.09 25 kB J-SUB Manual 1.3 English 27.11.08 233 kB TI 385 J, Q and T-Series system design, d&b ArrayCalc English 18.05.09 3979 kB The J-Series brochure English 30.10.09 3872 kB Order form for printed documentation from d&b. Accessories Available PDF documents for the accessories can be found in the table below the images. Z5300 J Flying frame incl. 2 x J Load adapter Z5303 J Safety chainset Z5305 J Hoist connector chain E7910 J-SUB Wooden lid PDF Title Language Date Size J-Series Rigging manual 1.2 English 06.02.09 4758 kB Top. Feedback.