K-Array Rumble KU212W – White Ultra-Slim Stainless Steel Passive Subwoofer

Product Overview

The K-Array Rumble KU212W is the white-finish version of K-Array's largest stainless steel passive subwoofer, built for commercial AV installations where the cabinet must disappear against light walls, ceilings, and architectural surfaces. At only 200 mm (7.9 in) deep, this ultra-slim installation subwoofer pairs a 12-inch neodymium woofer with a 12-inch passive radiator for 130 dB peak SPL and 700 W rated power. The sealed steel enclosure also serves as a weather-resistant outdoor subwoofer for exterior architectural integration. A black KU212 version is also available.

Product Description

Architects and designers specify white loudspeakers for a reason: on plaster, gypsum, and painted surfaces, a black cabinet draws the eye while a white one vanishes. The KU212W delivers genuine 12-inch low-frequency output from a profile shallow enough to sit flat against a wall, under millwork, or along a ceiling line in design-sensitive commercial interiors. Its passive-radiator architecture eliminates reflex ports, sealing the stainless steel enclosure against dust and moisture while keeping cone excursion linear with minimal residual noise — the same construction that qualifies it for outdoor terraces and exposed facades, with a marine version available on request. The double voice coil offers selectable 4-ohm or 16-ohm operation, so integrators can parallel up to four cabinets on one amplifier channel at 4 ohms across distributed zones. K-Array Kommander amplifiers include a dedicated KU212 preset that aligns the subwoofer with white Vyper, Lyzard, or Kobra satellites for a fully color-matched, low-profile system. White K-WALL2 and K-PMOUNT mounting hardware completes the architectural specification. For a smaller white subwoofer, see the Rumble KU210W.

Key Features

• Architectural White Finish — The factory white enclosure blends into light walls, ceilings, and millwork in design-driven commercial interiors, with custom RAL colors available for exact matching.
• Ultra-Slim 200 mm Cabinet Depth — The 655 x 330 x 200 mm profile mounts flat against surfaces where conventional 12-inch subwoofers would protrude into the room.
• 12-Inch Woofer with 12-Inch Passive Radiator — The sealed radiator-loaded design reaches 35 Hz while keeping dust, sand, and water out of the enclosure.
• 700 W Rated Power and 130 dB Peak SPL — Output capability supports medium and large commercial spaces from a discreet footprint.
• Selectable 4/16 Ohm Impedance — The double voice coil allows up to four units per amplifier channel at 4 ohms for efficient multi-zone wiring.
• Weather-Resistant Stainless Steel Construction — The corrosion-resistant cabinet serves indoor and outdoor installations, with an optional marine treatment for coastal sites.
• Matched Kommander Amplifier Presets — Dedicated DSP presets balance the KU212W against any K-Array mid-high speaker, including white Vyper and Lyzard satellites.
• White Mounting Hardware Available — K-WALL2W brackets and K-PMOUNTW pole adapters keep the entire installation color-consistent.

Typical Applications

• Houses of worship with light interior finishes requiring concealed bass
• Auditoriums and performance spaces with white acoustic treatments
• Commercial meeting spaces and all-hands rooms with architectural design standards
• Multi-purpose rooms where loudspeakers must match ceiling and wall colors
• Government spaces and civic buildings with strict aesthetic specifications
• Broadcast studios needing low-profile bass against light set surfaces

Technical Specifications

Frequently Asked Questions

Is the KU212W acoustically identical to the black KU212?

Yes. The white finish is cosmetic only; transducers, enclosure volume, frequency response, power handling, and impedance options are identical to the black KU212.

Which amplifier should drive the KU212W?

Any professional amplifier rated for its 700 W handling will work, but K-Array Kommander amplifiers are recommended because their dedicated KU212 preset manages crossover and alignment against K-Array mid-high speakers automatically.

Can I match the white finish across the whole system?

Yes. K-Array offers white versions of Vyper, Lyzard, and Kobra satellites plus white K-WALL2W and K-PMOUNTW mounting hardware, and custom RAL finishes are available for exact architectural color matching. See the K-Array collection.

How many KU212W units can share one amplifier channel?

With the double voice coil set to 16 ohms, up to four cabinets run in parallel on a single 4-ohm amplifier channel, reducing amplifier count in distributed commercial systems.

Is the white finish suitable for outdoor installation?

Yes. The sealed stainless steel construction resists weather in exterior installations, and a marine version with enhanced anti-corrosion treatment is available on request for coastal environments.

What warranty applies?

K-Array products carry a 5-year manufacturer warranty, supported by Creation Networks as an authorized dealer with commercial AV system design assistance.