The Rumble-KU26 I is an ultra-compact marine-grade passive subwoofer designed to deliver precise and controlled low-frequency reinforcement in refined audio systems, invisible sound systems, and multi-zone sound systems, where powerful bass must integrate seamlessly with architecture and design - even in demanding outdoor and marine environments.

Crafted entirely from stainless steel, the Rumble-KU26 I combines durability, elegance, and an exceptionally slim profile. It is ideal for installations requiring discreet low-frequency support in hospitality venues, retail sound systems, residential audio systems, and outdoor architectural installations. The enclosure houses a 6" neodymium magnet woofer paired with a 6" passive radiator, delivering extended bass performance with a 45 Hz – 150 / 500 Hz (-6 dB) frequency response and up to 121 dB peak SPL, all within a compact architectural format.

With 8 Ω / 32 Ω selectable impedance and a 4-pin Euroblock connector, the KU26 I integrates easily into distributed audio systems. A dedicated preset ensures optimal performance when powered by K-array amplifiers, enabling clean, controlled, and impactful low-frequency reproduction in multi-zone systems, design-driven installations, and space-conscious environments.

For full-range performance, the Rumble-KU26 I pairs perfectly with compact mid-high loudspeakers such as Vyper, KZ14, Lyzard, or Tornado, completing a discreet and high-resolution audio solution suitable for both indoor and outdoor use.

Available finishes:
• Black • White • Custom RAL • Custom Finishes

Marine Version

Stainless steel construction with enhanced anti-corrosion treatments and IP64 rating, with additional water protection available via the K-KUIP accessory, ensuring reliable operation in marine, coastal, and outdoor installations exposed to humidity, salt, and harsh weather conditions.

Ideal for:
Yachts, Cruise ships, Beach clubs, Outdoor hospitality venues, Luxury pool areas

Railway Stations