J8 loudspeaker
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. 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.
Amplifiers
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
| Live music |   |
| Playback |  |
| Speech | |
| Stage monitor | |
| Subwoofer |
Data
| Components | 2 x 12" / 1 x 10" / 2 x 1,4" |
Max. sound pressure (1m, free field) with D12 |
145 dB SPL |
| Power handling capacity LF (RMS / peak 10 ms) | 500 / 2000 W |
| Power handling capacity MHF (RMS / peak 10 ms) | 200 / 800 W |
| Frequency response (-5 dB) | 48 / 85 Hz - 17 kHz |
| Nominal dispersion angle (horizontal) | 80° |
| Splay angle settings | 0 - 7° (1° increment) |
| Cabinets per D12 | 2 |
| Dimensions mm (H x W x D) | 360 x 1100 x 570 |
| Weight kg | 60 |
| Dimensions inch (H x W x D) | 14.2 x 43.3 x 22.4 |
| Weight lb | 132 |
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 |
|
with subwoofer |
|
with a subwoofer suitable for music and high level program |
|
SPL max peak test signal: pink noise with crest factor 4 |
|
standard/CUT mode |
|
≥ 250 Hz |
Downloads
Documentation
| Title | Language | Date | Size |
|---|---|---|---|
| Declaration of Conformity Loudspeaker/Amplifiers (CE) | Int | 13.03.12 | 34 kB |
| J8 Manual 1.2 | English | 27.11.08 | 282 kB |
| The J-Series brochure | English | 27.02.12 | 6465 kB |
| TI 385 d&b Line array design, ArrayCalc V6.7 | English | 03.04.12 | 3667 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 |
E7919 J Wheelboard |
| Title | Language | Date | Size |
|---|---|---|---|
| J-Series Rigging manual 1.3 | English | 08.05.12 | 4758 kB |
FAQs
Please find the specified FAQs here.
