RCF NX 945-A 15-Inch 2100W Active Speaker

NX 945-A is masterfully engineered from the ground up to deliver stellar audio performance for sound providers, small bands and DJs. The combination of a 4” titanium/neodymium compression driver, 15” neodymium woofer - two-channel 2,100W amplifier, and the constant directivity True Resistive Waveguide produces coherent 100° x 70° coverage for the listening area with up to 135 dB SPL, distortion-free sound. Used as a stand-alone speaker for a FOH system, satellite (with subwoofer), stage monitor, or flown speaker, the NX 945-A blends high performance and reliability in a compact package. Merging RCF proprietary FiRPHASE and Bass Motion Control DSP processing, perfectly tuned for each model, the audience will experience absolute sound clarity and deep, powerful bass response. The tour-ready, rugged all-wood cabinet is easy to carry and secure to install on a pole-, flown-, wall-, or truss-mounted using the dedicated rigging points available.

Power that moves
The most powerful amplifier in its class. RCF's improvements in transducer design make them stronger and powerful, so the amplifier follows the evolution. With 2,100W of power, the 2-channel NX 9 Class-D amplifier is 50% more powerful than previous models, able to manage extreme sound pressure levels with an ultra-fast attack, realistic transient response, and very low heat loss. NX 9 is energy-efficient so there's no need for a cooling fan - the amplifier is attached to a solid aluminum heat exchanger in the rear of the cabinet without moving parts. The input circuit features a new low distortion design with an advanced safety limiter, maintaining the true character of the input signal at all levels. All NX 9 amplifiers are designed according to EN62368-1 for maximum safety and present a Switch Mode Power Supply section merging high-efficiency with minimum weight.

Potent woofer
The low-frequency transducer is a high-power 15” neodymium woofer with a 3.5” voice coil that delivers tight, punchy bass. Reproduction of the mid-bass frequencies is accurate, transparent, and free from distortion.

Superior compression drivers
The ND940 Compression Driver in pure Titanium with a 4-inch voice coil allows a crossover point at only 650 Hz. This allows a better impulse response, fast decay, and superior efficiency. Lightweight and powerful, RCF neodymium drivers are a reference in performance and reliability.

Direct Drive Technology
The voice coil features a high-temperature Kapton former. The assembly process takes advantage of the RCF proprietary Direct Drive technology. The diaphragm’s suspension has been designed following extensive research and development aimed at minimizing distortion and extending low-frequency range.

Bass Motion Control
When searching for extended bass with enhanced performance, RCF engineers found a way to remove the high-pass filter, replacing it with a forward-thinking approach. Introducing BMC (Bass Motion Control), the newly advanced woofer excursion management feature. NX 9 Series with BMC can handle the lowest audible frequencies without affecting the woofer stability, providing extended linearity and better sound integrity. The BMC method works by creating a complete map of the dynamic behavior of the woofer to generate a custom algorithm that only limits over-excursions. This gives total freedom of signal reproduction to the transducer. When high-pass filters normally protect the woofer motion from becoming destructive but change the phase behavior, the BMC algorithm breaks this rule. In combination with FiRPHASE technology, NX 9 has a new level of audio performance in this series of speakers.

Tour-proven workhorse
NX 9 can operate as either the main system or as a floor monitor. This flexibility makes it a smart choice for a wide range of live sound applications. The rugged all-wood cabinet is easy to carry with handles on both sides. The lower side includes a steel pole socket for mounting on a stand or a subwoofer pole. Each model can also be flown, wall- or truss-mounted using the six included M10 rigging points, Quick Lock pins, and special accessories. From the wood cabinet to the final texture and protective grille, NX 9 Series offers maximum strength for intensive use on the road and can be used for fixed installation.

Ready for heavy-duty applications
The highly innovative entertainment industry is always evolving by increasing demands on interconnection systems. Particular environmentally sealed connectors are highly requested for heavy-duty and harsh environment applications of entertainment equipment. The speaker features True Outdoor Protection (TOP) PowerCON TRUE1 power input connectors. These ruggedized sealed connectors feature IP protection and UV resistance approved according to UL50E.

Key Features

• Up to 135 dB Sound Pressure Level
• 2100W Class-D Bi-Amplification
• 45-20000 Hz linear frequency response
• 4” Titanium/Neodymium Compression Driver
• 15” neodymium Woofer
• FiRPHASE zero degrees phase technology
• Bass Motion Control woofer excursion management
• Six M10 and four Quick Lock rigging points

Technical Specifications

ACOUSTICAL SPECIFICATIONS
Frequency Response
45 Hz ÷ 20000 Hz
Max SPL @ 1m
135 dB
Horizontal coverage angle
100°
Vertical coverage angle
70°
TRANSDUCERS
Compression Driver
1 x 1.4” neo, 4.0” v.c
Woofer
15” neo, 3.5” 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
650Hz
Protections
Thermal, RMS
Limiter
Soft Limiter
Controls
Linear, Boost, Stage, Volume
POWER SECTION
Total Power
2100 W Peak
High frequencies
700 W Peak
Low frequencies
1400 W Peak
Cooling
Convection
Connections
Powercon TRUE1 TOP IN/OUT
STANDARD COMPLIANCE
Safety agency
CE compliant
PHYSICAL SPECIFICATIONS
Cabinet/Case Material
Plywood
Hardware
2 x M10 Top, 1 x M10 each side, 1 x M10 bottom, 1 x M10 rear
2 each side quick lock pin seat
Handles
1 x Side
Pole mount/Cap
Yes
Grille
Steel
Color
Black, White
SIZE
Height
705 mm / 27.76 inches
Width
420 mm / 16.54 inches
Depth
451 mm / 17.76 inches
Weight
27.3 kg / 60.19 lbs
SHIPPING INFORMATION
Package Height
751 mm / 29.57 inches
Package Width
506 mm / 19.92 inches
Package Depth
474 mm / 18.66 inches
Package Weight
31 kg / 68.34 lbs