The Rumble-KU210 is an ultra-thin, high-performance passive subwoofer designed to be the perfect companion to the K-array mid-high speaker for AV applications. A combination of extended frequency response with prodigious output and a virtually invisible profile make the KU210 an ideal solution even for the most ambitious projects.
The subwoofer is comprised of a 10” neodymium transducer, combined with a 10” passive transducer, instead of a reflex, which ensures that the device remains completely sealed, making it impenetrable by foreign objects such as dust, sand or water.
It is made entirely of steel, making it extremely resistant, even when deployed outside in tough weather conditions. This makes it ideal for outdoor installations where ordinary bass speakers would corrode. KU210 is also available in marine version, with special treatment to withstand marine environments and resist wear and tear and weathering. 

The unit is engineered for maximum linear excursion and minimum residual noise. Its neodymium transducer has a double voice coil for two selectable impedance settings (4-16 Ω ), allowing you to combine up to 4 units powered by the same amplifier channel at 4Ω.  By recalling the dedicated presets, the K-ARRAY Kommander amplifiers are the best electronics to run any Rumble subwoofer, capable to balance perfectly all the settings you need to match with any mid-high speaker of the K-ARRAY’s catalog. This helps integrators to find their complete audio solutions in the same range of products.

Measuring 50 x 28.2 x 15.1 cm (19.7 x 11.1 x 5.9 in) and weighing 11 Kg, the KU210 is available in an elegant black or subtle white and can be customized in any RAL color as well as in premium finishes like brushed or polished steel, or with 24 K gold, rose gold, or antique gold plating, making it easy to blend in or grab attention - depending on your aim - in a variety of spaces.

The main product models and codes are:
KU210  black model
KU210W white model
KU210X customizable color and finish (box + grill)
new! KU210M, KU210MW, KU210MX (only RAL colors) = MARINE TREATMENT (on request) 

All Rumble-KU210 components are designed by the K-array R&D department and are custom-made under the K-array quality control system in Italy.


Extremely compact subwoofer



  • Type:  

    Passive subwoofer

  • Transducers:  

    10" neodymium magnet woofer
    10" passive radiator

  • Frequency Response:  

    40 Hz – 150 Hz (-6 dB)

  • Max SPL:  

    127 dB (peak)

  • Rated Power:  

    320 W

  • Coverage:  


  • Connectors:  

    4PIN euroblock connector (included)

  • Nominal Impedance:  

    4 Ω / 16 Ω selectable

Handling and Finishes

  • Dimensions (W x H x D):  

    500 x 282 x 151 mm (19.7 x 11.1 x 5.9 in) 

  • Weight:  

    11 kg (24.3 lb)

  • Material:  

    Stainless Steel

  • Colors:  

    Black, White, Custom RAL

  • Finishes:  

    24K Gold, Polished, Brushed


  • IP Rating:  


  • (1) With dedicated preset
  • (2) Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 1 m.
  • (3) Removable rubber feet not included in the measures.
  • (4) More complete water protection with K-KUIP accessory.
  • Passive loudspeakers requires dedicated preset loaded on board of K-array amplifiers.

  • New materials and design are introduced into existing products without previous notice.


KU210 Datasheet

Ver. 2.0

KU210 User Guide

Ver. 1.3

KU210 DWG 3D

Ver. 3.0

KU210 DXF 2D

Ver. 4.0

KU210 PDF 3D

Ver. 3.0

KU210 3DS 3D

Ver. 1.0

KU210 Layout

Ver. 2.1


Ver. 3.0

KU210 Architect Specs

Ver. 1.0

Amp-to-Speakers Table

Ver. 2.2

CE Declaration of Conformity

BIM: KU210

files in Revit

Related accessories


W Ibiza Hotel

Set on Santa Eulalia Beach, the 162-room W Ibiza, which is owned by Inversions Hoteleres Ebza, is in proximity to Ibiza'...

View Details

Mr. & Mrs. Bund Modern Eatery

Top restaurant Mr. & Mrs. Bund is located in a historic 19th century building in Shanghai with a 2,700-cubic meter d...

View Details

Prevost Coach Motorhome

Traveling for a long time requires the right soundtrack and sound experience to keep you feeling motivated and energized...

View Details

Do you want to become our installer?