K-Array Rumble KU44-2 – Ultra-Slim 2-Ohm Passive Subwoofer (Black)

Product Overview

The K-Array Rumble KU44-2 is the 2-ohm version of K-Array's ultra-slim stainless steel passive subwoofer, configured specifically as the low-frequency element of the Azimut KAMUT2L compact sound system driven by the Kommander KA02 amplifier. The slim installation subwoofer uses two 4-inch neodymium woofers and two 4-inch passive radiators in a sealed steel cabinet only about 4 inches deep, reaching 116 dB peak SPL with response down to 45 Hz. It is the bass foundation for discreet commercial audio systems built around K-Array Lyzard and KZ14 satellites in boardrooms, hospitality spaces, and meeting rooms. For standalone and distributed designs, the selectable-impedance KU44 I (8/32 ohm) is the standard choice.

Product Description

K-Array's Azimut KAMUT2L system packages two KZ14 satellite speakers, one KU44-2 subwoofer, a KA02 amplifier, and a remote controller into a complete miniature sound system — and the KU44-2's 2-ohm wiring is what lets the compact KA02 amplifier extract full output from the cabinet on a single channel. Shoppers can purchase the complete Azimut KAMUT2L II system or specify the KU44-2 separately for replacements and custom system builds. Acoustically the cabinet is identical to the rest of the KU44 platform: long-excursion 4-inch drivers tuned for maximum linear excursion and minimum residual noise, passive radiators in place of a port, and a fully sealed stainless steel enclosure rated IP54 that shrugs off dust and moisture. A dedicated amplifier preset manages the 150 Hz low-pass crossover, EQ, and limiting. Mounting hardware spans the K-WALL2 wall brackets, K-PMOUNT pole adapter, K-KCLAMP truss clamps, and the K-WF44 in-wall flush-mount kit. A matching white version is available as the Rumble KU44W-2.

Key Features

• 2-Ohm Configuration for Azimut Systems — Purpose-wired for the KAMUT2L system's Kommander KA02 amplifier, delivering full subwoofer output from a compact amplifier channel.
• Ultra-Slim 500 x 116 x 101 mm Profile — The roughly 4-inch-deep cabinet hides along walls, under counters, and behind millwork in design-sensitive rooms.
• Dual 4-Inch Woofers with Dual Passive Radiators — Neodymium drivers tuned for maximum linear excursion extend bass response to 45 Hz with minimum residual noise.
• 116 dB Peak SPL Output — Output capability anchors foreground music and speech systems in small to mid-size commercial rooms.
• Sealed Stainless Steel IP54 Construction — The weather-resistant enclosure suits indoor and protected outdoor installations alike.
• Dedicated Amplifier Preset — K-Array amplifiers apply factory crossover, EQ, and limiter settings for protected, repeatable performance.
• Matched Satellite Pairing — Completes full-range Azimut systems with KZ14 satellites, and integrates with Lyzard and Vyper micro speakers in custom designs.
• Full Mounting Ecosystem — Wall, pole, truss, stand, and in-wall flush-mount hardware covers permanent and portable installations.

Typical Applications

• Boardrooms and conference rooms running Azimut KAMUT2L systems
• Huddle rooms and commercial meeting spaces needing concealed bass
• Houses of worship with discreet satellite-subwoofer systems
• Multi-purpose rooms and training rooms with compact installed audio
• Government spaces where loudspeakers must remain unobtrusive

Technical Specifications

Frequently Asked Questions

Why does the KU44-2 use 2-ohm impedance?

The 2-ohm wiring is configured for K-Array's Azimut KAMUT2L system, where the compact Kommander KA02 amplifier drives the subwoofer at low impedance to reach full rated output. It is not intended for paralleling multiple cabinets on one channel — use the 8/32-ohm KU44 I for distributed designs.

Is the KU44-2 sold as part of a complete system?

Yes. It is the bass element of the Azimut KAMUT2L II system, which bundles two KZ14 satellites, the KA02 amplifier, and a remote controller. The KU44-2 is also available individually for replacements and custom builds.

Which amplifier should drive the KU44-2?

The K-Array Kommander KA02 (as supplied in the Azimut system) is the intended match. Any K-Array amplifier driving it should be rated for 2-ohm loads and configured with the dedicated KU44 preset and a low-pass crossover near 150 Hz.

Can the KU44-2 be flush-mounted or used outdoors?

Yes. The K-WF44 accessory recesses the cabinet into a wall, and the sealed stainless steel IP54 enclosure tolerates dust and moisture for protected outdoor placement.

What warranty applies?

K-Array products carry a 5-year manufacturer warranty, supported by Creation Networks as an authorized dealer. See related models in the K-Array collection.