KS21

High power subwoofer, 21"

OMNI / CARDIO SUBWOOFER

Max SPL	138 dB
Low frequency limit	29 Hz
Transducers	LF: 1 x 21"
Weight	49 kg / 108 lb
Directivity	standard or cardioid configurations

POWERFUL

Exceptional impact with high power to size ratio

SHARP

Clear low-frequency power with L-VENTS™

LIGHT

Flown under the most stringent rigging conditions

RUGGED

Built for the road with simple, fast, integral rigging

Inspiration

5XT

KARA II

KIVA II

KS21

LA2xi

LA4X

A Series

KS21

A15i Focus

A15i Wide

KS21

LA4X

X12

Check out our Documentation Center for more documentations on this product.

High power compact subwoofer: 1 x 21''
amplified by LA4X / LA8 / LA12X

Low frequency limit (-10 dB)	29 Hz ([KS21_60])
Maximum SPL¹	138 dB ([KS21_100])
Nominal directivity (-6 dB)	Standard or cardioid configuration
Transducers	1 × 21″ neodymium cone driver
Acoustical load	bass-reflex, L-Vents
Nominal impedance	8 Ω

¹ Peak level at 1 m under half space conditions using pink noise with crest factor 4 (preset specified in brackets).

Connectors	2 × 4-point terminal block with push-in connection
Rigging and handling	external rigging kits M6 inserts for rigging plates M8 inserts for A-U15i 1 DIN580-compatible M8 threaded insert
Weight (net)	49 kg / 108 lb
Cabinet	premium grade Baltic beech and birch plywood
Front	Coated steel grill Acoustically neutral 3D fabric
Rigging components	high grade steel with anti-corrosion coating
Finish	dark grey brown Pantone 426 C
IP	IP55