BS Series | BS221  | BS318  | BS218  | BS215  | BS212  | BS112  | BS280 |
                  | BS250  | BS180  | BS150  | BS320  | BS210/BS286  | BS820  | 
BS820 a horn radiated design subwoofer, it loads 2x18" big power and long-stroke drive units. Its special LF compression and extension technology leads a very high output efficiency. This system is used as LF auxiliary of AS820 system, its suspension device can be combined with MF and LF system of AS820 to become a high efficiency array system. It can applied to different assembly such as stacking on the ground or hanging, also can install on the bottom side of AS820 array to be a independent subwoofer.BS820 uses multilayer birch plywood to make the enclosure, with elastic coating or environmental protection coating shell. The front panel use metal mesh enclosure stick acoustic soft sponge as the speaker's protection. Side plate combine 4 metal handles and suspension device, NL8 parallel connection on rear panel.
■ 2x18"subwoofer system
■ Horn radiated design
■ Powerful sound pressure
■ Array conncetion device
■ Suspend with AS820
■ Waterproof and heat resistance
■ Large stadiums, arenas, all kinds of performances
■ Entertainment venues, nightclubs, bars
■ Theme park and concert hall
■ Mobile or fixed installation
■ As subwoofer of AS820 system
Frequency Response
System Sensitivity
Nominal Impedance
Power Handing
Maximum SPL
Crossover Frequency
42 Hz - 500 Hz @ -10 dB
105 dB SPL (1W @ 1m)
2 x 8 ohms
1200 watts, 2400 watts, 4800 watts
135 dB
100 Hz
Low Frequency
2 x 18(in) 460 mm dia, 115 mm(4.5in) voice coil dia
Enclosure Construction
Suspension Hardware

Input Connectors
Dimensions H x W x D
Net Weight
18 mm birch plywood with structured
Wear-resistant textured black paint
Powder coated perforated steel,foam backed
8 x 4(4 Position fly track)
points (4 front,4 rear)
NL4 x 2
1190 mm x 680 mm x 860 mm
96 kg
© 2022 Copy right BOB Professional Audio Co.,Ltd       Contact us  |   Privacy  |   Sitemap