The RCF ST 15-SMA II sets a new standard for active stage monitors, offering exceptional performance, reliability, and versatility for rental companies and musicians alike. With a robust 1200 Watt amplifier and a maximum SPL of 131 dB, this ultra-compact speaker delivers powerful sound reinforcement with low distortion, making it ideal for high-energy music applications, DJ sets, and vocal reinforcement, whether used standalone or with subwoofers.

Featuring a 15″ woofer with a 2.5″ voice coil and a 1.0″ compression driver with a 1.4″ voice coil, the ST 15-SMA II ensures deep, accurate bass reproduction and precise midrange and high-frequency response. The integrated DSP includes FiRPHASE filters for 0° phase response, ensuring coherent sound distribution without phase distortion.

Built to withstand the rigors of daily use, the ST 15-SMA II features a multifunctional cabinet constructed from high-strength birch plywood and coated with textured polyurethane. A sturdy powder-coated metal grille protects the front of the speaker, while an acoustically transparent sound foam backing inside the grille provides additional protection from dust and humidity. The speaker also includes a steel cap for pole mounting.

Equipped with FRFR (Full Range Flat Response) technology, the ST 15-SMA II serves as both a stage monitor and a reference monitor, allowing musicians to model their sound through a neutral speaker with flat frequency response and 0° phase response. This flexibility enables users to adapt and customize their guitar sound with complete freedom, making it an essential tool for modern stage performances.