L-Acoustics KS21 Subwoofer 100121409 Lets you tame the sound

Lets you tame the sound of the effects return path to soften the harsh tone certain pedals produce

It features an ultra-flexible small-diameter gooseneck and accepts interchangeable elements

Continuous blinder/wash effect

can achieve an extremely uniform flat beam that can render images perfectly in all conditions and at any beam angle

A completely wireless

L-Acoustics KS21 Subwoofer 100121409 Lets you tame the soundL Acoustics KS21 High Power Subwoofer, 21" Passive subwoofer with a high excursion, direct radiating 21 in transducer mounted in a bass reflex tuned enclosure with laminar vents for increased LF efficiency. The enclosure cabinet is constructed of premium grade Baltic beech and birch plywood. The transducer front is protected by a coated steel grill and an acoustically transparent fabric. The enclosure integrates four ergonomic handles, and panel