The 27S-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. It can be used stand-alone, stacked or individually flown. 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. Incorporated into the side panels are a pair of M10 threaded inserts and into the rear panel are 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.
The d&b audiotechnik loudspeaker range is designed exclusively for operation with d&b amplifiers. These provide power as well as comprehensive control and protection functions tailored to achieve the performance, reliability and longevity associated with the d&b System approach. The d&b 30D amplifier is recommended to drive the 27S-SUB. The d&b 10D, D20, D80 and D6 amplifiers can also be used with the appropriate loudspeaker configuration selected.
|Frequency response (–5 dB standard)||40 - 140 Hz|
|Frequency response (-5 dB 100 Hz mode)||40 - 100 Hz|
Max. sound pressure (1m, free field)1
|Cabinets per amplifier channel||2|
|Configuration||Installation specific cardioid subwoofer|
|Nominal impedance||6 Ω|
|Power handling capacity (RMS/peak 10 ms)||500/2000 W|
15" driver with neodymium magnet front
12" driver with neodymium magnet rear
2 x NL4
screw terminal block
|Dimensions (H x W x D)||
490 x 580 x 700 mm
19.3 x 22.8 x 27.6"
Application information is presented for guidance only. d&b reserves the right to make any necessary changes to the products and the published specifications. As part of the ongoing development program d&b tries to maintain the highest degree of product compatibility.
The loudspeaker shall be an integrated cardioid subwoofer consisting of a 15 driver in a bass-reflex design radiating to the front and a 12 driver in a two chamber bandpass design radiating to the rear, with both drivers to be powered by a single amplifier channel.
The enclosure shall be made from marine plywood with an impact resistant black paint finish.
Special colours according to RAL table and a weather resistant option shall be available upon request.
The drivers shall be protected by a powder coated metal grill with an acoustically transparent foam.
The cabinet shall be Ball Impact Resistant for schools and sports halls.
The cabinet shall incorporate two M10 threaded inserts on each side panel for the secure attachment of brackets.
The connection panel on the back shall be recessed and fitted with two NL4 sockets and a two pole screw terminal block.
A cover plate for protection of the connection panel shall be included.
The loudspeaker shall only be operated by a dedicated, compatible controller amplifier.
The power handling capacity shall be 400 W RMS and 1600 W peak (10 ms).
The frequency response (-5 dB) measured on axis shall be 40 Hz to 140 Hz with a maximum sound pressure of at least 128 dB or 131 dB respectively when operated with one of its dedicated controller amplifiers.
The dimensions shall not exceed 580 x 490 x 700 mm (WxHxD) and shall weigh no more than 41 kg (90 lb).
The loudspeaker shall be the 27S-SUB by d&b audiotechnik GmbH.