KXM 20-A

ACTIVE HIGH DEFINITION STAGE MONITOR

131 dB SPL Max
2000W Peak, two-way Class-D amplifier
90° x 70° constant directivity coverage
2 x 8’’ neodymium Woofers, 2.5’’ voice coil.

RDNet

FiRPHASE

BASS MOTION CONTROL

Where to buy

Features

131 dB SPL Max
2000W Peak, two-way Class-D amplifier
90° x 70° constant directivity coverage
2 x 8’’ neodymium Woofers, 2.5’’ voice coil.
TRW loaded 3" voice coil neodymium compression driver,
FiRPHASE and Bass Motion Control
RDNet Networked Management
Multifunctional cabinet with symmetrical transducers’ design

The KXM 20-A is a high-output, two-way active stage monitor engineered for clarity, control, and fast deployment. Delivering up to 134 dB SPL Max with a 2000 W Peak Class-D amplifier, it provides 90° x 70° constant-directivity coverage for a stable monitoring window and predictable off-axis response. The multifunctional cabinet features a symmetrical transducer configuration to ensure consistent voicing across the listening area. Two 8” neodymium woofers with 2.5” voice coils deliver punch and headroom, while a horn-loaded neodymium compression driver with a 3” voice coil ensures strong vocal presence and projection. Integrated DSP processing with FiRPHASE and BMC improves coherence and definition in real-world conditions, and onboard RDNet control enables centralized monitoring and control for efficient stage workflows. The multifunctional cabinet makes KXM 20-A equally effective as a stage wedge or as a controlled point source in portable FOH or fill applications.

NEW

Precision Transducers

KXM 20-A relies on RCF Precision Transducers, developed in-house, that combine high power handling and low distortion, providing exceptional sound pressure levels in a compact package. The high frequencies section features a The loudspeaker’s low-frequency section comprises two 8” high-power neodymium woofers in a symmetrical configuration. The new True Resistive Waveguide behaves as a pure resistive load—free from resonances—significantly reducing high-frequency distortion typically associated with conventional horns.

Advanced electronics

KXM employs high-efficiency Class-D amplification with high headroom and stable performance over long show days, along with high-end AD/DA conversion and advanced onboard DSP. Thermal management is integrated into the mechanical design: the amplifier is mounted on a solid, machined-aluminum structure that serves as a heat sink for efficient, fanless heat dissipation, improving reliability while keeping the enclosure stiff.

Tour Ready Construction

KXM monitors use a reinforced wooden enclosure designed for durability in transport and stable performance at high SPL. Internal bracing keeps the cabinet rigid and acoustically quiet, minimizing unwanted vibrations. A heavy-duty, powder-coated steel grille protects the transducers, while an internal foam layer helps reduce dust exposure in daily use. The low-profile wedge geometry and rugged hardware are optimized for real stage work, supporting repeated load-ins, fast changeovers, and consistent results under mechanical stress. When needed, the same controlled directivity also makes KXM suitable as a pole-mounted point source for standalone FOH or fill applications. KXM uses powerCON® TRUE1 TOP locking in/out mains connectors for demanding use cases, including outdoor environments.

Digital Signal Proficiency

The KX DSP platform is the next-generation audio engine for RCF active speakers and DSP amplifiers. Designed as a real-time DSP engine, it offers unparalleled processing density and scalability, propelling RCF speakers to a new dimension of performance.

This groundbreaking DSP engine delivers unmatched processing power for its class.

Bass Motion Control®

KX speakers equipped with Bass Motion Control (BMC) produce the lowest audible frequencies without affecting the woofer stability, with extended linearity and better sound integrity. The BMC method creates a complete map of the dynamic behavior of the woofer, to generate a custom algorithm that limits over-excursions. Traditional high-pass filters protect the woofer from over-excursion but change the phase/frequency response. In contrast, the new BMC algorithm protects the woofer allowing total freedom of signal reproduction.

New perspective on linearity

KX speakers are designed using a proprietary and advanced digital FiR technology, conceived to deliver transparent sound, absolute clarity, and perfect imaging to the listener. The special FiRPHASE processing distributes sound to all listeners without phase distortions, ensuring minimum latencies in the system. The algorithm corrects phase and amplitude (if necessary) by taking into account the weak points of the transducers and the resonances or cancellations due to the cabinet of the loudspeaker.

NETWORKED CONTROL AND MUCH MORE

RDNet is an advanced platform for integrated monitoring and control of sound systems - from small live and installed setups to massive arena systems. Based on a robust networked architecture, RDNet combines system control, line array design, and comprehensive audio measurements into a single powerful software package.

Engineers and technicians can intuitively manage every device on the network, from individual components to multiple groups. The platform provides full DSP control of compatible devices, with flexible configuration tools for perfectly tuning the system response at maximum speed. Users have real-time access and oversight of all key settings from a centralized interface.