Product Overview:

The L-Acoustics KS21 is a high-output, high-performance subwoofer designed to deliver powerful and deep low-frequency reproduction in a variety of live sound applications. Featuring a 21″ low-frequency driver, the KS21 produces incredibly deep bass with a low-frequency limit of 29 Hz, making it ideal for large-scale concerts, festivals, and events that demand exceptional subwoofer performance. With a maximum SPL of 138 dB, the KS21 offers impressive power and output, ensuring full-bodied, room-shaking bass across a wide audience.

The subwoofer utilizes L-Vents technology to optimize low-frequency response and reduce distortion, providing a cleaner, more efficient bass output. Whether used in omni-directional or cardioid configurations, the KS21 can be deployed to suit various event needs. The cardioid configuration offers controlled, directional bass, while the omni-directional setup provides a broader dispersion for even coverage throughout the venue.

Weighing 49 kg (108 lbs), the KS21 is designed for durability and reliable performance in demanding environments, making it an excellent choice for professional sound reinforcement in both indoor and outdoor applications. Its 21″ driver and robust design make it capable of handling high power, delivering deep, impactful bass with minimal distortion, even at high SPL levels.

• Max SPL: 138 dB for high-output bass performance
• Low Frequency Limit: 29 Hz, ensuring deep and powerful bass
• Transducers:
  • LF: 1 x 21″ driver for ultra-low-frequency response
• Directivity:
  • Omni-directional: Standard bass coverage
  • Cardioid Configuration: Focused, directional bass for targeted audience coverage
• Performance:
  • High-power subwoofer with a 21″ driver for deep bass and minimal distortion
  • L-Vents for enhanced low-frequency performance and efficiency
• Weight: 49 kg / 108 lbs for durability and reliability in tough environments
• Applications: Ideal for large-scale sound reinforcement, festivals, live concerts, and events requiring impactful low-end frequencies

Rent the L-Acoustics KS21 in Chicago for your next event, concert, or festival. The KS21 offers exceptional bass performance, flexibility in directivity, and reliability, making it perfect for any event where powerful low-frequency output is essential. Whether you’re looking for broad bass coverage or focused low-end for a specific audience, the KS21 provides the versatility and high performance that professional audio engineers trust for top-tier sound reinforcement.