d&b audiotechnik B6 High Performance Subwoofer NL4 100698074 try using the included IR

try using the included IR remote

clear sound

Frequency Bands: A: 530

QSC KLA12 12 Inches 500 Watt 2-Way Powered Line-Array Speaker (Black)

d&b audiotechnik B6 High Performance Subwoofer NL4 100698074 try using the included IRd&b audiotechnik B6 High Performance Subwoofer NL4 The B6 SUB is a high performance subwoofer designed for ground stacked applications, housing a long excursion 18 driver built into a bass reflex design. When three or any multiple of three B6 SUBs are used, they can be positioned in a Cardioid Subwoofer Array with one cabinet physically facing backwards and driven by an amplifier channel with CSA mode selected. This achieves exceptional directivity