NX 915-SMA speaker is a stage monitor designed for sound providers, musicians, bands, and DJs. The combination of a 1.75” compression driver, 15” woofer, two-channel 2,100W amplifier, and the TRW waveguide produces coherent 100° x 70° coverage for the listening area with up to 131dB SPL of distortion-free sound. Used as a stage monitor, stand-alone speaker system, or satellite paired with a subwoofer, the NX 915-SMA blends high performance and reliability in a compact package. Combining RCF proprietary FiRPHASE and Bass Motion Control DSP processing, NX 915-SMA Series speakers deliver absolute clarity and deep, powerful bass response. The tour-ready, rugged all-wood cabinet is easy to carry and set up on stage or on a pole.
RCF NX 915-SMA Features
- Up to 131 dB Sound Pressure Level
- 2100W Class-D bi-amplification
- 45-20000 Hz linear frequency response
- 1.75" Compression Driver
- 15" Woofer
- FiRPHASE zero degrees phase technology
- Bass Motion Control woofer excursion management
- 70ºx100º Constant Directivity Coverage Angle
- Perfectly tailored for horizontal or vertical deployment
More about RCF's NX Column Speakers
RCF's NX Series of are comprised of masterfully engineered wooden speakers with remarkable audio performance and extended versatility for professional audio applications.

What’s in the Box?
- NX 915-SMA 15-Inch Powered Stage Monitor1
- Acoustical
- Frequency response: 45 hz ÷ 20000 hz
- Max spl @ 1m: 131 db
- Horizontal coverage angle: 100°
- Vertical coverage angle: 70°
- Transducers
- Compression driver: 1 x 1.0'', 1.75'' v.c
- Woofer: 15'', 2.5'' v.c
- Input/output section
- Input signal: Bal/unbal
- Input connectors: Combo xlr/jack
- Output connectors: Xlr
- Input sensitivity: -2 dbu/+4 dbu
- Processor section
- Crossover frequencies: 1600 hz
- Protections: Thermal, rms
- Limiter: Soft limiter
- Power section
- Total power: 2100W peak
- High frequencies: 700W peak
- Low frequencies: 1400W peak
- Cooling: Convection
- Connections: Powercon true1 top in/out
- Standard complianceSafety agency: Ce compliant
- Physical
- Cabinet/case material: Plywood
- Handles: 1 on side and 1 on top
- Pole mount/cap: Yes
- Grille: Steel
- Color: Black
- Size
- Height: 357.3 mm / 14.07 inches
- Width: 705 mm / 27.76 inches
- Depth: 456.6 mm / 17.98 inches
- Weight: 17.3 kg / 38.14 lbs
- Shipping
- Package height: 745 mm / 29.33 inches
- Package width: 505 mm / 19.88 inches
- Package depth: 425 mm / 16.73 inches
- Package weight: 20 kg / 44.09 lbs