Data Sheet
NX 12-SMA
ACTIVE COAXIAL STAGE MONITOR
DESCRIPTION
NX Series maximum flexibility philosophy has been maintained for NX12-
SMA; it is possible, in fact, to use it as a portable PA system, thanks to the 
rugged powder coated steel pole mount installed on the side
The newly designed 12”+1” coaxial neodymium transducers guarantee an 
outstanding audio quality and definition as well as an extremely lightweight 
of the final system
The advantages of the coaxial transducers are the complete absence of 
feedback and, thanks to the coherent single spherical wave front with a 
perfect dispersion control, a perfect listening in every position.
The design is powered from a large sized single neodymium ring magnet that 
provides an extremely high flux density and BL factor.
The new hyper-vented aluminium basket and magnetic assembly design 
provide an excellent heat dissipation and lower power compression.
Special air-forced ventilations are provided for voice coil, magnet assembly 
and basket. 
A 2,5” voice coil combined a strength fibreglass former and aluminium wire 
drives the mid-bass cone with high efficiency and a good extension. The 1,7” 
dome compression driver, loaded to a 60° conical waveguide, provides a clear 
vocal output and a perfect high frequency extension
The NX Coaxial Stage Monitors are provided with brand new digital amplifiers 
with powerful DSP processing. The NX 12-SMA is equipped with a 700 W 
amplifier, 500 W feed the low frequencies and 200 W are used for the high 
frequencies.
In order to control the response of the speakers in such different applications, 
RCF has incorporated two special Equalization Modes: Floor, for stage 
monitoring and Free Field, for the use of the speakers as a stand-alone PA 
system
The input board is fully equipped in order to configure the stage monitors for 
any stage situation with XLR Input and Output Link, Jack Input, Volume, Input 
Sensitivity Switch, Free Field – Floor Switch, Status LEDs, Powercon AC Input 
and Output Link
Cabinets are made in Baltic Birch plywood, finished with an extremely 
resistant paint for an extensive use on the road. An ergonomic side handle, 
integrated with the input panel, is provided for an easier transport.
MAIN FEATURES
•  700 Watt digital bi-amplification 
•  129 dB max spl 
•  Wide dispersion 60° x 60° constant directivity horn 
•  12” High power neodymium woofer, 2.5” voice coil 
•  1,7” kapton dome, 1” exit, neodymium high frequency driver 
•  DSP processing, boost eq, soft limiter and protection 
•  Xlr/jack input, xlr signal output
MAIN APPLICATIONS 
•  Main vocal stage monitor 
•  High-output guitar or keyboard monitor 
•  Main PA in small venues
•  Portable and installed audio-visual systems
ACOUSTICAL SPECIFICATIONS
Frequency response: 50 Hz- 20 Khz
Max SPL: 129 dB
Horizontal coverage angle: 60°
Vertical coverage angle: 60°
Compression driver: 1” neo, 1.7” voice coil
Woofer: 12” neo, 2.5” voice coil
INPUT SECTION
Input signal (Impedance): bal/unbal
Input/Output connector: XLR, Jack / XLR
Input sensitivity: +4 dBu
PROCESSOR SECTION 
Crossover frequencies: 1700 Hz
Protections: RMS limiter, HF
Sensitivity control: -
Limiter: soft limiter
High pass: -
Controls: freefield, floor
AMPLIFIER
Power supply: switching 700 Watt
High frequencies: D / 200 Watt
Low frequencies: D / 500 Watt
Cooling: convection
Connection: powercon Input / powercon Output
PhySICAL
Height: 324 mm (12.7”)
Width: 550 mm (21.6”)
Depth: 417 mm (16.4”)
Weight: 16.5 kg (36.3 lbs)
Cabinet: baltic birch plywood
Hardware: -
Handles: 1 side aluminum handle
Pole mount cap yes
Colour: Black




