K-Array Rumble KU44W I – Ultra-Slim White Passive Installation Subwoofer

Product Overview

The K-Array Rumble KU44W I is the white-finish version of K-Array's ultra-slim stainless steel passive subwoofer, built for installations where low-frequency reinforcement must blend into light-colored walls, ceilings, and architectural surfaces. This white installation subwoofer packs two 4-inch neodymium woofers and two 4-inch passive radiators into a cabinet only about 4 inches deep, producing 116 dB peak SPL with response down to 45 Hz. Selectable 8/32-ohm impedance suits distributed commercial audio systems in conference rooms, houses of worship, and meeting spaces. The same model is offered in black as the Rumble KU44 I.

Product Description

White loudspeakers solve a real problem in design-driven interiors: black cabinets stand out against painted drywall, light stone, and bright ceilings. The KU44W I keeps the full acoustic performance of the KU44 platform — long-excursion 4-inch drivers tuned for maximum linear excursion and minimum residual noise, with passive radiators in place of a port — inside a sealed stainless steel enclosure finished in white. The sealed cabinet carries an IP54 rating, and a marine version with enhanced anti-corrosion treatment (IP64) extends service to exposed and coastal sites. With its double voice coil switched to 32 ohms, several cabinets can share a single amplifier channel across distributed zones, and a dedicated preset in K-Array Kommander amplifiers such as the KA04 manages the 150 Hz crossover and limiting automatically. K-Array pairs the KU44 platform with compact mid-high speakers such as the Vyper and KZ14, and white versions of the K-WALL2 brackets, K-PMOUNT pole adapter, and K-WF44 in-wall kit keep the entire mounting system color-matched. Integrators building the white Azimut KAMUT2LW system should specify the 2-ohm KU44W-2 instead.

Key Features

• White Finish for Light Interiors — The factory white enclosure blends into painted walls, ceilings, and bright architectural surfaces where black cabinets would intrude.
• Ultra-Slim 500 x 116 x 101 mm Profile — The roughly 4-inch-deep cabinet mounts along walls, under seating, or beside line arrays with minimal visual footprint.
• Dual 4-Inch Woofers with Dual Passive Radiators — Neodymium drivers deliver bass extension to 45 Hz with maximum linear excursion and minimum residual noise.
• 116 dB Peak SPL Output — Output capability covers foreground music and speech support in small to mid-size commercial rooms.
• Selectable 8/32 Ohm Impedance — The double voice coil allows multiple cabinets per amplifier channel for efficient distributed audio wiring.
• Sealed Stainless Steel IP54 Construction — The weather-resistant enclosure serves indoor and outdoor installations; a marine IP64 version is available.
• Dedicated K-Array Amplifier Preset — Kommander amplifiers apply factory crossover, EQ, and limiter settings for protected, predictable performance.
• Color-Matched Mounting Hardware — White K-WALL2W brackets, K-PMOUNTW pole adapter, and K-WF44W in-wall flush-mount kit complete a fully white installation.

Typical Applications

• Conference rooms and boardrooms with light architectural finishes
• Houses of worship integrating bass into white walls and columns
• Commercial meeting spaces with strict aesthetic requirements
• Auditoriums and multi-purpose rooms with design-led audio systems
• Government spaces where equipment must remain visually discreet
• Broadcast studios needing low-profile, light-colored bass elements

Technical Specifications

Frequently Asked Questions

Is the KU44W I acoustically identical to the black KU44 I?

Yes. The white finish is cosmetic only; drivers, enclosure, impedance options, and performance match the black KU44 I exactly.

Which amplifier should drive the KU44W I?

The cabinet is passive and requires external amplification with a low-pass crossover near 150 Hz. K-Array Kommander amplifiers, including the KA04, include a dedicated KU44 preset that handles crossover, EQ, and limiting.

When should I choose the KU44W-2 instead?

The KU44W-2 is the 2-ohm white version configured for the Azimut KAMUT2L system and its KA02 amplifier. For standalone or distributed designs, the 8/32-ohm KU44W I is the standard choice.

Are white mounting accessories available?

Yes. K-Array offers white versions of its wall brackets (K-WALL2W, K-WALL2LW), pole mount (K-PMOUNTW), and in-wall flush-mount kit (K-WF44W) so the complete installation stays color-matched.

Can the KU44W I be used outdoors?

Yes. The sealed stainless steel enclosure is IP54 rated, and a marine version with anti-corrosion treatment and IP64 rating is available for exposed or coastal environments.

What warranty applies?

K-Array products carry a 5-year manufacturer warranty, supported by Creation Networks as an authorized dealer. Browse the full line in the K-Array collection.