d&b audiotechnik B4 15-Inch/12-Inch NL4 Dual Passive Subwoofer 100711780 format according to Alesis specification

format according to Alesis specification

Connections Power Connection: Edison (Local) plug to Seetronic Powerkon IP65

Tow handle and wheels

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Specifications: Exterior Length: 29

d&b audiotechnik B4 15-Inch/12-Inch NL4 Dual Passive Subwoofer 100711780 format according to Alesis specificationd&b audiotechnik B4 15 Inch 12 Inch NL4 Dual Passive Subwoofer The B4 SUB is an actively driven cardioid subwoofer powered by a single amplifier channel. It 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. The cardioid dispersion pattern resulting from this approach avoids unwanted energy behind