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L-Acoustics KS28 High Power Subwoofer

E-CODE: B3410-

  • Usable Bandwidth: 25 Hz – 110 Hz
  • Maximum SPL: 142 dB Peak
  • Weight: 79 kg (174 lbs)
  • Components: Two 18″ neodymium cone drivers
  • Directivity: Standard or cardioid configurations
L-Acoustics KS28 High Power Subwoofer

Product Details

The L-Acoustics KS28 High Power Subwoofer is a top-tier passive subwoofer designed to deliver powerful and precise low-frequency performance. Equipped with two high-excursion, direct-radiating 18-inch neodymium cone drivers, the KS28 is built to handle intense sound pressure levels with remarkable clarity. The subwoofer’s bass-reflex tuned enclosure, combined with laminar vents, enhances low-frequency efficiency, ensuring deep, impactful bass down to 25 Hz.

Constructed from premium grade Baltic beech and birch plywood, the KS28’s enclosure is both durable and acoustically optimized. The robust design features a coated steel grill and acoustically transparent fabric to protect the internal components, while ergonomic handles and stacking runners make transportation and setup straightforward. The KS28 can be deployed in standard or cardioid configurations, providing flexible coverage options to suit various venue sizes and acoustic environments. Driven and protected exclusively by a proprietary amplified controller, the KS28 delivers consistent performance, making it an ideal choice for large-scale concerts, festivals, and other high-energy events.

Manufacturer Specs

  • Dimensions: (W, H, D): 1340 mm, 719 mm, 565 mm / 52.8 in, 28.3 in, 22.2 in
  • Weight: 79 kg / 174 lb
Product Details
The L-Acoustics KS28 High Power Subwoofer is a top-tier passive subwoofer designed to deliver powerful and precise low-frequency performance. Equipped with two high-excursion, direct-radiating 18-inch neodymium cone drivers, the KS28 is built to handle intense sound pressure levels with remarkable clarity. The subwoofer’s bass-reflex tuned enclosure, combined with laminar vents, enhances low-frequency efficiency, ensuring deep, impactful bass down to 25 Hz.

Constructed from premium grade Baltic beech and birch plywood, the KS28’s enclosure is both durable and acoustically optimized. The robust design features a coated steel grill and acoustically transparent fabric to protect the internal components, while ergonomic handles and stacking runners make transportation and setup straightforward. The KS28 can be deployed in standard or cardioid configurations, providing flexible coverage options to suit various venue sizes and acoustic environments. Driven and protected exclusively by a proprietary amplified controller, the KS28 delivers consistent performance, making it an ideal choice for large-scale concerts, festivals, and other high-energy events.

Manufacturer Specs

  • Dimensions: (W, H, D): 1340 mm, 719 mm, 565 mm / 52.8 in, 28.3 in, 22.2 in
  • Weight: 79 kg / 174 lb