This set includes two L-Acoustics KS21 subwoofers, delivering compact yet formidable low-frequency performance for professional live sound, rental and fixed installation. Each KS21 features a high-efficiency 21-inch neodymium driver in a well-braced enclosure, providing deep extension down to around 29 Hz and maximum SPL up to 138 dB when properly powered. The cabinets are passive, optimised for use with L-Acoustics amplified controllers, and pair seamlessly with A Series and K Series tops for coherent, musical LF reinforcement.
Both subwoofers are in like-new condition and have been fully tested by our technical team. The set is supplied with KS21-PLA accessory plates for secure deployment options, plus protective covers to safeguard the cabinets in transit and storage. An L-Acoustics LA12X amplified controller can be added on request to create a turnkey, manufacturer-optimised system.
A solid choice for touring, corporate events, theatres and premium installs, this KS21 pair offers powerful, tight and controlled low end with the reliability and sonic pedigree expected from L-Acoustics.
Includes
- 2 x L-Acoustics KS21 subwoofers
- 2 x KS21-PLA accessory plates
- 2 x protective covers
STAGE21.6.100.998