K-Array Kommander KA02 I – Compact Class D DSP Amplifier

Product Overview

The K-Array Kommander KA02 I is a compact Class D amplifier with DSP that delivers four 50 W channels at 4 ohms from a half-rack chassis weighing just 0.7 kg. Built for commercial AV integration in huddle rooms, conference rooms, and retail-scale zones, this 4-channel installation amplifier combines balanced analog, optical, Bluetooth, and network audio inputs with full onboard processing and remote control. Its quad-core processor runs K-Array's osKar operating system with a REST API, so integrators can tie the amplifier into third-party control platforms without external processors. It is the entry point to the Kommander line; larger systems can step up to the 4x300 W Kommander KA14 I.

Product Description

The KA02 I packs a 4-channel switching-mode Class D output stage into a 219 x 45.5 x 170 mm aluminum chassis, producing 4x 50 W at 4 ohms with 20 Hz to 20 kHz (±1 dB) frequency response and 2-ohm PBTL bridging for subwoofer duty. Inputs cover the situations integrators actually meet: four balanced euroblock connections for installed sources, a 3.5 mm stereo AUX jack for local devices, a TOSLINK optical input for displays and media players, four USB-A ports for file playback, plus Bluetooth 4.1 Low Energy and Wi-Fi streaming. The Integrated Electronic Brain runs the osKar operating system on a quad-core processor, providing input and output EQ, signal routing, grouping, level control, dynamic limiters, and delay — a complete small-room DSP without an outboard processor. The K-array Connect mobile app gives end users and technicians Wi-Fi control of main DSP parameters, while K-framework3 over wired Ethernet handles professional system design and tuning across many units. A REST API and published plugins for Q-SYS, Crestron, Control4, AMX, RTI, and Kramer make the KA02 I straightforward to fold into commercial control systems, and comprehensive protections — thermal, short circuit, overload, and clip limiting — keep connected loudspeakers safe in unattended installations. It is the natural drive unit for K-Array's compact passive loudspeakers; browse matching speakers in the K-Array collection.

Key Features

• Four Class D Channels in Half-Rack Format — 4x 50 W at 4 ohms from a 219 mm wide, 0.7 kg aluminum chassis fits credenzas, lecterns, and shallow AV racks where full-size amplifiers cannot.
• Flexible Output Bridging — Channels can be configured for stereo satellites plus a bridged 2-ohm PBTL subwoofer output, covering 2.1 and 4-zone designs from one unit.
• Complete Onboard DSP — Input/output EQ, signal routing, grouping, level adjustment, dynamic limiters, and delay eliminate the need for a separate processor in small commercial rooms.
• osKar OS with REST API — The quad-core Integrated Electronic Brain exposes a REST API for direct integration with third-party room control and automation systems.
• Comprehensive Input Set — Four balanced euroblock inputs, 3.5 mm AUX, TOSLINK optical, four USB-A ports, Bluetooth 4.1 LE, and Wi-Fi cover installed, local, and wireless sources.
• App and Software Control — The K-array Connect mobile app manages DSP over Wi-Fi, while K-framework3 over Ethernet supports multi-unit professional design and tuning.
• Published Control Plugins — Ready-made modules for Q-SYS, Crestron, Control4, AMX, RTI, and Kramer shorten programming time on commercial integration projects.
• Full Protection Suite — Thermal limiting, short-circuit and overload protection, clip limiting, and high-frequency protection safeguard loudspeakers in unattended installations.
• External 24 V Power Architecture — The included 100-240 V AC adapter and 20 W typical consumption simplify placement in furniture and millwork without ventilation concerns.

Typical Applications

• Huddle rooms and small conference rooms driving compact passive loudspeakers
• Boardrooms needing discreet amplification with control system integration
• Commercial meeting spaces with Bluetooth and network audio sources
• Training rooms and multi-purpose rooms with zoned audio requirements
• Government spaces requiring secure wired control over Ethernet
• Broadcast studios needing compact monitor feeds with onboard DSP

Technical Specifications

Frequently Asked Questions

Which K-Array speakers does the KA02 I drive?

It is designed for K-Array's compact passive loudspeakers — small column, satellite, and miniature point source models suited to its 50 W per channel rating — with dedicated speaker presets applied through the onboard DSP. See compatible models in the K-Array collection.

Can the KA02 I power a subwoofer and satellites together?

Yes. Channels 1 and 2 can bridge in PBTL mode into a 2-ohm subwoofer load while channels 3 and 4 drive left and right satellites — a complete 2.1 system from a single half-rack unit.

How is the amplifier controlled remotely?

Three ways: the K-array Connect mobile app over Wi-Fi for everyday DSP and routing control, K-framework3 over wired Ethernet for professional multi-unit design and tuning, and the REST API for custom control system integration.

Does it work with Crestron, Q-SYS, or Control4?

Yes. K-Array publishes plugins for Q-SYS, Crestron, Crestron Home, Control4, AMX, RTI, and Kramer, so commercial integrators can manage the KA02 I from existing room control processors.

Does it require rack mounting and ventilation?

No. The half-rack aluminum chassis weighs 0.7 kg, uses an external 24 V adapter, and draws roughly 20 W in typical operation, so it installs in credenzas, lecterns, and millwork as comfortably as in a rack.

What is the difference between the KA02 I and the KA14 I?

The KA02 I delivers 4x 50 W for small rooms and compact loudspeakers; the Kommander KA14 I steps up to 4x 300 W in a 1U full-rack format for larger passive systems, with the same DSP and control ecosystem.

What warranty applies?

K-Array products carry a 5-year manufacturer warranty, supported by Creation Networks as an authorized dealer with system design assistance before and after the sale.