27A subwoofer
The 27A-SUB is a compact high performance cardioid subwoofer powered by a single amplifier channel and is for use with the xS-Series and xA-Series loudspeakers. The cabinet houses two long excursion neodymium drivers in an integrated cardioid setup: a 15“ driver in a bass-reflex design facing to the front and a 12” driver in a two chamber bandpass design radiating to the rear. The 27A-SUB can be used stand-alone, stacked or as a base for a mixed ground stack. It can also be combined with 10A and 10AL loudspeakers in vertical flown arrays. The enclosure is constructed from marine plywood with an impact resistant black paint finish and is Ball Impact Resistant according to DIN 18032-3 for schools and sports halls. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The side panels have an integrated rigging system and the rear panel incorporates two NL4 connectors as well as a two pole screw terminal block. The loudspeaker cabinets and most accessories are also available with the Special Colour (SC) option that can be executed in all RAL colours, whilst the Weather Resistant (WR) option provides an IP34 rating, and enables operation of loudspeakers in changing ambient conditions.
Amplifiers
The 27A-SUB is driven by either the d&b D6 or D12 dual channel power amplifiers configured for the 27S-SUB. More detailed information on specific loudspeaker setups with d&b amplifiers is available either in the relevant loudspeaker or amplifier manuals.
Data
| Configuration | Arrayable cardioid subwoofer |
| Components | 15" driver with neodymium magnet 12" driver with neodymium magnet |
Max. sound pressure (1m, free field) with D6 / D12 |
128 / 131 dB SPL |
| Power handling capacity (RMS / peak 10 ms) | 500 / 2000 W |
| Frequency response (-5 dB) | 40 Hz - 140 / 100 Hz |
| Cabinets per channel D6 / D12 | 2 |
| Dimensions mm (H x W x D) | 488 x 580 x 700 |
| Weight kg | 41 |
| Dimensions inch (H x W x D) | 19.2 x 22.8 x 27.6 |
| Weight lb | 90 |
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 |
|
100 Hz mode |
Downloads
Documentation
| Title | Language | Date | Size |
|---|---|---|---|
| 27S-/27A-SUB Manual 1.2 | English | 05.12.11 | 291 kB |
| Declaration of Conformity Loudspeaker/Amplifiers (CE) | Int | 13.03.12 | 34 kB |
| The xA-Series brochure | English | 15.02.12 | 2580 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.
 |
 |
 |
| Z5415 Flying adapter xA |
Z5414 Flying bar xA |
Z5413 Flying bar connector xA |
 |
 |
|
| Z5418 Connector plate xA-SUB |
Z5147 Rota Clamp |
| Title | Language | Date | Size |
|---|---|---|---|
| xA-Series Rigging manual 1.1 EN | English | 29.03.12 | 1854 kB |
| Z5147 Rota Clamp, Mounting instructions | English | 05.12.06 | 447 kB |
