d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer 100747123 or to an iOS device

or to an iOS device using the iOS camera kit

Only the best components were utilized

100 lux @ 2 m

5" x 4" x 5

d&b audiotechnik 21S-SUB 21-Inch Passive Subwoofer 100747123 or to an iOS deviced&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