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d&b audiotechnik J8

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Product Overview

The J8 is a 3-way design housing 2 x 12" LF drivers, one hornloaded 10" MF driver and two 1.4" exit HF compression drivers with 3" voicecoils mounted to a dedicated wave-shaping device.

The mechanical and acoustical design enables flown vertical columns of up to twenty-four loudspeakers to be suspended using vertical splay angles between them of 0° to 7° with a 1° resolution. The cylindrical wave segments produced couple coherently in the vertical plane. Due to the dipolar arrangement of the neodymium LF drivers the exceptional 80° horizontal constant directivity dispersion control is nominally maintained down to 250 Hz. The J8 is acoustically and mechanically compatible with the J12 loudspeaker.

The J8 can only be driven by the d&b D12 dual channel amplifier configured for the J8. More detailed information on specific loudspeaker setups with the D12 amplifier is available either in the relevant loudspeaker or D12 manual.

Applications

Features

It can be used in columns of purely J8 loudspeakers or combined with J12s and / or with J-SUBs. The J8 cabinet is constructed from marine plywood and has an impact and weather protected PCP (Polyurea Cabinet Protection) finish. The front of the loudspeaker cabinet is protected by a rigid metal grill, the side and rear panels incorporate four handles, and two EP5 or NL8 connectors wired in parallel are also mounted at the rear.

Specifications

  • System data     
  • Frequency response (–5 dB standard)    48 Hz - 17 kHz
  • Frequency response (–5 dB CUT mode)    85 Hz - 17 kHz
  • Max. sound pressure (1 m, free field)1    145 dB
  • Loudspeaker data             
  • Nominal impedance    6/12 ohms
  • Power handling capacity LF (RMS/peak 10 ms)    500 W/2000 W
  • Power handling capacity MHF (RMS/peak 10 ms)    200/800 W
  • Nominal dispersion angle (horizontal)    80°
  • Splay angle settings    0 - 7° (1° increment)
  • Components    2 x 12” driver/1 x 10“ driver
                2 x 1.4” exit compression driver
                Passive crossover network
  • Connections    2 x EP5, optional 2 x NL8
                screw terminal block
  • Pin assignments    
  • EP5    1: LF+/2: LF–/3: MHF+/4: MHF–/5: SenseDrive
  • NL8    1+: LF+/1–: LF–/4+: MHF+/4–: MHF–/3–: SenseDrive
  • Weight    41 kg (90 lb)

Product Downloads

  • J8 J-Series Brochure PDF 3.7 MB
  • J8 J8 Manual PDF 0.3 MB

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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the J8.