Thunder-KS3 I

SUBWOOFER
Thunder-KS3 I

The Thunder-KS3 I is a high-performance ultra-light subwoofer line designed to deliver powerful and controlled low-frequency reinforcement for professional sound systems, live events, and installed audio applications. Despite its compact footprint, the KS3 I provides deeper and more authoritative bass while maintaining precision and clarity across the low-frequency range.

At its core, the system features a 21" neodymium magnet woofer, delivering extended bass performance down to 30 Hz. Built with a polyurea-coated birch plywood enclosure and no bass reflex, the KS3 I combines durability with portability and controlled emission, measuring 735 × 580 × 700 mm and weighing 49.2 kg.

The self-powered model integrates a Class D amplifier with DSP processing for advanced system control. It supports power outputs, analog and digital connectivity, and advanced networking. With built-in Web-App and K-framework3 software compatibility, it is accessible via dedicated K-Connect.

KS3 I is available in Black, White, and Custom RAL finishes, ideal for large-scale concerts, touring systems, and fixed installation applications. Marine grade passive model available in white color.

Downloads

Compatible plugins

Q-SYS

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Crestron

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Dante

K-array's Dante, a licensing program by Audinate.

Kramer

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RTI

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Savant

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Symetrix

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Basalte

Easily integrate K-array amplifiers into Basalte Home for seamless control of your multiroom audio. Enjoy a perfectly minimal sound experience throughout your home.

WAVED

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NDI

K-array’s compatibility with NDI audio brings seamless integration into modern IP-based workflows. By leveraging NDI, users can transmit high-quality, low-latency audio over standard networks without complex cabling or additional hardware. This flexibility enables scalable installations, remote management, and interoperability with a wide range of devices, making K-array systems ideal for broadcast, live events, and corporate environments. The result is a streamlined, future-ready solution that combines exceptional sound performance with the efficiency of networked audio.