Buy L-Acoustics KS21 Subwoofer UK

L-Acoustics KS21 is available to buy from Adlib in the UK. Request a KS21 sales price below.
Buy L-Acoustics KS21 uk

About L-Acoustics KS21

The KS21 is a compact reference subwoofer designed to extend the bandwidth of A15 and A10 systems.

L-Acoustics KS21 features one high excursion, direct radiating 21" transducer mounted in a bass-reflex tuned enclosure.

The KS21 is also available in install-specific versions, KS21i, KS21iW, and KS21iRAL, with the latter two featuring white or RAL coating of the enclosure.

When coupled with A15 system, the KS21 operates from 39 Hz to 60 Hz, whereas when working with A10 that changes to 30 Hz and 100 Hz.

To ensure reduced turbulence and port noise at high level, the KS21 features L-Vents that additionally increase LF efficiency.

KS21’s frequency response has been optimised to work seamlessly with both systems.

In terms of rigging, the KS21 features a two-point, integrated rigging system that is compatible with A15, meaning that various combinations of KS21 and A15 can be flown or stacked to form a full range line source.

Additionally, KS21 can work in a pole-mount configuration with A15 or A10, as it has an integrated threaded insert.

KS21 can be deployed in standard or cardioid configurations with dedicated presets for flown and stacked deployment.

Key Features Include

  • High power compact 21" subwoofer
  • Exceptional impact
  • Augmented short-term SPL
  • Lightweight (49kg / 108lbs)
  • Simple, fast, integral rigging
  • Supported by LA4x and LA12x
Model Number:

New Price:

Request a Price

Get our best L-Acoustics KS21 prices.


Buy L-Acoustics KS21

Our best UK L-Acoustics KS21 prices are not published online. Request a sales price below. We will respond within 1 business working day.

Demo L-Acoustics KS21

You would be welcome to visit our demo facilities in Liverpool or Glasgow for a personal demo of L-Acoustics KS21. Click below to arrange. Request Demo

  Need help? Give us a call on +44 (0) 151 486 2214

Similar L-Acoustics Subwoofers

L-Acoustics Syva Low
L-Acoustics Syva Low
Syva Low is a high power low frequency subwoofer: 2 x 12'' LF for use with Syva systems.
L-Acoustics K1 SB Subwoofer
L-Acoustics K1-SB
The K1-SB contains two 15’’ transducers in a bass-reflex tuned enclosure.and is the recommended subwoofer complement for the K1 or K2 line source s...
L-Acoustics Syva Sub
L-Acoustics Syva Sub
The Syva sub is designed work work alongside the Syva enclosure to extend the low frequency performance.