The L-Acoustics KS21 is a compact, high-output 21-inch PA subwoofer designed for precise, musical low-frequency reinforcement. Delivering a powerful maximum SPL of 138 dB with extension down to 29 Hz, it provides deep, controlled bass that enhances impact without masking detail. Its single 21-inch driver is optimised for punch and definition, while the enclosure supports standard or cardioid deployment to reduce stage spill and tighten audience coverage. At just 49 kg, the KS21 offers an impressive output-to-size ratio, making it an efficient, scalable choice for modern touring productions and space-conscious installations alike. Built to L-Acoustics’ exacting standards, it integrates seamlessly into professional systems and arrays where consistent, articulate low end is critical. Ideal for live music, theatre, clubs, corporate events and houses of worship, the KS21 brings authority and clarity to your low-frequency mix while remaining easy to deploy and control. Choose it when you need tight, impactful bass performance without compromise.
Includes
- L-Acoustics KS21 21" Subwoofer – Compact High-Output
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