L-Acoustics KS21iW High Power Compact Subwoofer 1x21-Inch 100196781 which provides extra comfort for

which provides extra comfort for hours of play

UA840D: 774–782 MHz

Best performance using ETC's EDLT lens tubes

Designed to have low handling and wind noise

Symphony Option

L-Acoustics KS21iW High Power Compact Subwoofer 1x21-Inch 100196781 which provides extra comfort forL Acoustics KS21iW High Power Compact Subwoofer 1x21 Inch KS21i is a compact reference subwoofer designed to extend the bandwidth of A15i and A10i systems in installation applications. KS21i features one high excursion, direct radiating 21'' transducer mounted in a bass reflex tuned enclosure. KS21i couples with A15i and A10i to reinforce contour and extend bandwidth to 29 Hz and 31 Hz respectively. KS21i features L Vents that substantially reduce