RCF NX 915-SMA

An active speaker designed for the modern stage and the NX Series

Designed as a professional tool, the NX 915-SMA fits the spirit of the NX Series: offering a compact, portable, and rugged active speaker capable of delivering versatile performances without multiplying gear. The approach is clear: provide a stage monitor that holds up on tour while remaining versatile enough to also serve as a front-of-house speaker or reinforcement, depending on the venue setup and event type.

Its all-wood cabinet, built to withstand road rigors, and its efficiency-oriented design (power, directivity, DSP processing) make it a coherent solution for setups where reliability and quick installation matter as much as sound quality.

Who is it for and what are the uses? A pro wedge that does it all

The RCF NX 915-SMA is aimed at musicians, sound engineers, production companies, touring bands, and DJs who want a clear and powerful monitor capable of remaining intelligible on noisy stages. As a stage monitor, it helps stabilize listening (vocals, guitars, keyboards, tracks) thanks to controlled projection and detailed mid-high reproduction without harshness.

As a standalone speaker, it can also cover small to medium front-of-house applications or serve as a satellite paired with a subwoofer to build a modular system. Its ability to be used horizontally or vertically simplifies adaptation to the stage, placement, and event type.

Power, control, and coherence: key points of the NX 915-SMA

Class D bi-amplification: headroom for transients

With Class D bi-amplification and a total power of 2100 W, the NX 915-SMA is designed to maintain headroom when the mix gets dense. This reserve results in better handling of attacks (kick, snare, bass, vocals) and a sound that remains stable when pushing levels on stage.

1.75-inch compression driver + 15-inch woofer: intelligibility and foundation

The combination of a 1.75-inch compression driver and a 15-inch woofer targets a simple goal: maintain intelligibility in vocals and melodic instruments while providing solid low end. The specified frequency response of 45 to 20,000 Hz covers a wide spectrum, useful both as a monitor and for small front-of-house use.

TRW waveguide and constant directivity: even coverage

The TRW-type waveguide and constant directivity horn contribute to coherent dispersion, with a stated coverage of 100 degrees x 70 degrees. On stage, this consistency helps better "aim" the listening area, reduce dead zones, and maintain a uniform tonal character when moving around.

FiRPHASE and Bass Motion Control: DSP serving musicality

RCF's proprietary FiRPHASE and Bass Motion Control DSP processing work on both temporal coherence (for more precise reproduction and clearer imaging) and woofer excursion management (to keep the low end clean and avoid mechanical saturation effects). The result: clearer sound, deep bass, and more controlled behavior when driving the speaker at high volume.

Technical specifications

Bluetooth

No

Maximum sound pressure	up to 131 dB SPL	FiRPHASE	zero-degree phase response technology
Linear frequency response	45 to 20,000 Hz	Bass Motion Control	woofer excursion management
Woofer	15 inches	Use	stage monitor, standalone front-of-house speaker, satellite paired with subwoofer
Compression driver	1.75 inches	Positioning	suitable for horizontal or vertical installation
Amplification type	Class D bi-amplification	Construction	all-wood cabinet designed for touring rigors
Total power	2100 W	Dimensions (W x H x D)	357 x 705 x 456 mm
Waveguide	TRW type	Weight	23.8 kg
Constant directivity horn	70 degrees x 100 degrees