d&b audiotechnik 21S-SUB ซับวูฟเฟอร์พาสซีฟ 21 นิ้ว 2600 วัตต์

d&b audiotechnik 21S-SUB

The 21S-SUB is a high performance subwoofer for use with the xS-Series and xA-Series loudspeakers and is intended for a wide range of permanently installed applications. The cabinet houses a single long excursion 21″ driver in a bass-reflex design. The large, specially shaped reflex port enables the 21S-SUB to achieve high Sound Pressure Levels from a cabinet with a small footprint. When operated in INFRA mode, the 21S-SUB can be used to complement other d&b subwoofers by extending the frequency response of the system down to 33Hz. The 21S-SUB can be ground stacked or flown in either orientation. It can be flown individually or in a cluster of two cabinets. The enclosure is constructed from marine plywood with an impact resistant black paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The top, bottom and rear panels each incorporate a pair of M10 threaded inserts for attaching d&b rigging hardware. The Weather Resistant (WR) option provides an IP55 rating that enables the operation of loudspeakers in changing ambient conditions, and features a fixed cable.

Features of d&b audiotechnik 21S-SUB

• Installation specific high performance subwoofer with compact footprint
• 21″ driver with neodymium magnet
• Power Handling Capacity (RMS/Peak 10 Ms) 650/2600 W
• frequency response (–5 dB standard) 35 Hz – 105 Hz
• Nominal impedance 4 Ω
• Max SPL 135 dB

System data

Loudspeaker data