L-Acoustics KS21 Subwoofer
Experience with this passive subwoofer! It features a high-excursion, direct-radiating 21 in transducer in a bass-reflex tuned enclosure with laminar vents for boosted LF efficiency. The premium Baltic beech and birch plywood cabinet ensures durability. The coated steel grill and acoustically transparent fabric protect the transducer front. Four ergonomic handles and panel corner stops add convenience and protection. Captive flush-fitting hardware enables rigging and combination with other family loudspeakers. Dedicated rigging accessories allow for flown or stacked setups. Combine two or more elements with presets for omnidirectional or cardioid patterns. Exclusive proprietary amplified controller drives and protects it through a dedicated preset.
Specifications:
- Coverage:
- Enclosure directivity: standard or cardioid configuration
- Transducers:
- LF transducer: 21' neodymium cone driver
- Acoustics:
- Nominal impedance: 8
- Usable bandwidth: 29 Hz - 83 Hz (-10 dB), 32 Hz - 71 Hz (-6 dB), 35 Hz - 60 Hz (-3 dB) / 31 Hz - 100 Hz (-10 dB), 35 Hz - 87 Hz (-6 dB), 40 Hz - 78 Hz (-3 dB)
- RMS power handling (Calculated using the mean impedance measured on the usable bandwidth): 467 W
- Maximum SPL: 138 dB Peak level at 1 m under half space conditions using pink noise with crest factor 4
- Physical data:
- Acoustical load: bass-reflex
- Cabinet: premium grade Baltic beech and birch plywood
- Dimensions (W, H, D): 762 mm, 576 mm, 620 mm / 30 in, 22.7 in, 24.4 in
- Weight (net): 49 kg / 108 lb
- Connectors: 2 ¡Á 4-point speakON
- IP: IP55
- Finish: dark grey brown Pantone 426 C
This L-Acoustics KS21 subwoofer is perfect for sound engineers, DJs, and event organizers looking to add powerful bass to their setups. Whether it's a concert, club gig, or corporate event, this subwoofer will deliver. With dimensions of 762 mm (W) x 576 mm (H) x 620 mm (D) and a weight of 49 kg, it's easy to transport and set up. The 21-inch neodymium cone driver provides high-excursion and powerful bass response. The bass-reflex tuned enclosure with laminar vents boosts LF efficiency. Use it to create a thumping bassline that will keep the crowd dancing all night long.
