d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer 100839193 Radial ProDI Features:

Radial ProDI Features:

2-pin IP Connector Power In

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Program input - party-line: <= 0

d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer 100839193 Radial ProDI Features:d&b audiotechnik 21S SUB 21 Inch Passive Subwoofer 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