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The largest in K-array’s Rumble subwoofer line, the KU212 is comprised of a 12" neodymium transducer combined with a 12" passive transducer. Measuring at 33 x 65.5 x 20 cm and weighing 18 kg, the sub's frame has a shallow depth and performs at high power.

Designed as the perfect companion to the K-array’s Installed Sound speakers, the Rumble-KU212 an ideal solution for complex medium and large-format projects like clubs, lounges and live concerts. KA series amplifiers have presets specifically optimized for KU212 applications.

More information about the Rumble line


Visually Discreet

For architectural reasons, a visually discreet audio system may be required to integrate seamlessly with the layout without compromising sound quality.



We created a portfolio complete with lightweight products that are easy to transportation and quick to setup optimizing logistics, space, labor costs and time.


Premium Finishes

Similar to high-end fashion accessories and jewelry, our products undergo the most advanced coating process for a more beautiful and lustrous look.


Color Customizable

We have the ability to customize your project by color matching your system to any RAL code to help you to better integrate the speakers into a wide variety of venues.


Weather Resistant

We utilize the most durable and resistant materials when developing our products to protect and conserve the system regardless of the elements, rendering a K-array installation reliable and long-lasting.



Selectable Impedance

Selectable impedance lets the user to choose the right loudspeaker impedance value allowing to set the proper load and maximize performance.




  • Power Handling 700 W
  • Impedance 4 / 16 Ohm
  • Frequency range (-10 dB) 35 Hz-150 Hz
  • SPL 1W/1mt 100 db
  • Maximum SPL3 124dB (cont) - 130dB (peak)


  • Coaxial External passive crossover
  • Vertical 150 Hz


  • Type 1 x 12” neodymium magnet with 2” voice coil
  • Type 1 x 12” passive transducer

Power Audio in/out

  • Connectors 1 x 4-pin Phoenix connector

Recommended Amplifiers

  • Type KA24 - KA84


  • IP 56 (More complete water protection with K-KUIP accessory)

Physical Overview

  • Dimensions 65.0 x 33.0 x 20.0 cm (25.78”x 12.99”x 7.87”) (1)
  • Weight 18.5 Kg (40.8 lb)
  • Notes for data:

    1. (W x H x D).

    New materials and design are introduced into existing products without previous notice. Present systems may differ in some respects from those presented in this catalog.

Customers Applications

Rumble-KU212 can be successfully used in a range of different settings and events.

Discover all the projects where Rumble-KU212 products have been used