Description
Powerful class D amplifiers
RCF's Class-D power amplifier technology packs huge performance operating with high efficiency into a lightweight solution. EVOX amplifiers deliver ultra-fast attack, realistic transient response and impressive audio performance. The amplifier features a solid mechanical aluminium structure which not only stabilises the amplifier during transportation but also helps the fan-less heat dissipation. The EVOX amplifiers present SMPS power supply section in order to produce maximum output and minimum transportation weight.
Superior transducers
High frequencies
The ultra-compact full-range 4” drivers are capable of handling extremely high SPL and power. The top column features 8 drivers.
Low frequencies
The high excursion 15” RCF woofer extends to the lowest frequencies offering quick and precise punch. The bass-reflex port design avoids air turbulence reducing distortions. The EVOX 12 array design features constant horizontal directivity coverage of 90° x 30°, offering a perfect listening experience to the audience. The vertical array design is progressively shaped to guarantee a correct listening from the first row and to avoid a high frequency beaming typical of straight array.
Ready to play in a few simple steps
Portability
With 3 simple steps, the EVOX 12 system is all set and ready to play! EVOX 12 system is designed to be easily transported and quickly set up. All the components – top column, sub, pole and cables –come in one package and fit in the optional transportation covers.
Mountingt
The top column will be inserted on the pole mount, which can be easily screwed on the Sub top side and the pole mount can be separated in two single parts in order to place it on the transportation bag.
Play!
Carrying and mounting your audio system has never been so quick!
New perspective on linearity
RCF speakers are designed using a proprietary and advanced digital FiR technology, conceived to deliver transparent sound, absolute clarity, and perfect imaging to the listener.
The special FiRPHASE filters allow for coherent distribution of sound for all listeners without phase distortions, ensuring minimum latencies in the system.
The special FiRPHASE filters allow for coherent distribution of sound for all listeners without phase distortions, ensuring minimum latencies in the system.
The Transducer Innovators
RCF boasts over 75 years of experience in designing and manufacturing transducers, with a particular focus on moving coil loudspeakers. Our transducers are engineered to optimize the balance between power delivery and sound purity, achieving minimal distortion and the capacity to endure high power levels for extended periods.
Heritage
RCF's legacy includes pioneering advanced transducer technologies and the application of high-tech materials such as Neodymium, Carbon Fibre, Titanium, Kevlar, Modified Polyether Ether Ketone (PKX), Kapton, and Mylar hybrids.
Endurance
Our models are subjected to a rigorous evaluation process, featuring a 200-hour continuous signal test designed to challenge the transducers' limits. This demanding stress test ensures that only transducers meeting our stringent standards for durability and performance are selected.
Vanguard
RCF is at the forefront of technological advancements, continually striving for the optimal listening experience. Our design methodology integrates rigorous measurement tests with critical listening sessions, underscoring our commitment to precision tailored for the human ear.
High-Grade Materials
The inclusion of a high-damping cellulose cone, double polycotton-polyurethane spiders for outstanding stability and control over the moving mass, and a substantial heavy-gauge treated triple cloth surround, contribute to the moving mass's exceptional strength and excursion control. Additionally, a water-repellent treatment ensures suitability across various environments.
Advanced Compression Drivers
Kapton®, extensively used in space and for temperature-resistant insulation, is chosen for its ability to retain a unique combination of mechanical properties under the most extreme conditions of heat and vibration.
Titanium, recognized for its high resistance to corrosion, fatigue and temperature, with high tensile strength-to-density ratio and crack resistance merges durability with superior frequency response.
PKX (Modified Polyether Ether Ketone) is a rigid, yet lightweight material enhanced with reinforcing ribs for slim dome designs, offering greater precision and reliability than other polymeric materials.
High Power Magnet Designs
Magnet geometry and configuration are optimized for maximum flux density, incorporating thermal management to ensure reliability. Techniques such as computer-aided magnet optimization and FEM analysis refine magnet weight, flux density, and field saturation, significantly reducing driver weight and harmonic distortion.
The T-pole design minimizes flux modulation in the magnetic assembly during typical voice coil movements within the gap. We developed specially designed rings in copper for compression drivers and aluminum for cone transducers. Pressed onto the pole piece, the ring modifies and reduces the magnetic circuit and voice coil inductance, enabling a controlled extension of the acoustic frequency response.
High-Class Neodymium
Neodymium, a rare earth material, enhances efficiency, power handling, and weight reduction. Using a 20% stronger magnetic field than typical neodymium grades, this new design enables precise control and higher force.
Ferrite Ceramics
Our engineering team has introduced a new ferrite magnet that delivers higher flux in a lightweight design, setting a new standard for ferrite products by minimizing weight without compromising performance.
Dual Forced Hyperventing System
Hypervented cooling designs combine various components to create an ideal ventilation system. The RCF engineering team emphasizes finned cooling channels and optimizes the surface area of the front magnetic plate for efficient heat dissipation. The double silicone sealed spider design functions as an air pump, expelling hot air and drawing in fresh air with each movement of the cone assembly.
Diaphragm Assembly
The diaphragm and suspension are precision-crafted significantly reducing distortion by eliminating resonance points and aiding in suspension breakup mode control. RCF has mastered an oxygen-free process for molding titanium ultrathin films into high-quality, precisely shaped diaphragms. Our current Polyimide-Kapton dome with new bonding technology and reinforced ribs, is ten times more durable than previous models.
Direct Drive Voice Coil
This setup ensures optimal energy transfer between the voice coil and the dome assembly, resulting in a smoother, extended frequency response beyond 10 kHz, reducing break-up modes, and lowering distortion. This assembly delivers not only high power handling but also excellent mechanical and thermal properties, making RCF compression drivers robust and reliable.
Phase Plugs
Through extensive computer-assisted mathematical modeling and testing, we've developed phase plug geometries that ensure balanced acoustic performance by controlling and lowering air distortion and maximizing output. This allows for a lower compression ratio, generating substantially lower distortion artifacts. The result is high output with smooth acoustic frequency response and low harmonic distortion artifacts.
Extreme Power Handling
Significant investment in material science, design topology research, and power testing enables us to produce products with unmatched structural integrity, optimal thermal properties, and superior power handling capabilities. Our engineers have developed composite polyimide and fiberglass former materials that withstand peak temperatures above 380°C, far exceeding the thermal demands of contemporary professional audio systems.
Inside/Outside Voice Coils
RCF's unique voice coil design offers several advantages: the dissipation surface is doubled; the adhesion area to the former is doubled; and during thermal expansion, the former is squeezed between inside and outside layers, offering the best mechanical resistance.
Acoustical specifications Frequency Response 40 Hz - 20000 Hz
Max SPL @ 1m 130 dB
Horizontal coverage angle 90°
Vertical coverage angle 30°
Transducers Fullrange 8 x 4.0'', 1.0'' v.c
Woofer 15'', 3.0'' v.c
Input/Output section
Input signal bal/unbal
Input connectors XLR, Jack
Output connectors XLR
Input sensitivity 2 dBu/+4 dBu
Processor section
Crossover Frequencies 180 Hz
Protections Thermal, RMS Limiter
Soft Limiter Controls
Volume, EQ
Power section
Total Power 400 W Peak, 700 W RMS
High frequencies 400 W Peak, 200 W RMS
Low frequencies 1000 W Peak, 500 W RMS
Cooling
Convection Connections VDE
Standard compliance
Safety agency
CE compliant
Physical specifications
Cabinet/Case Material
Baltic birch plywood
Color
Black, White - RAL 9003
Size / Weight
Height
2200 mm / 86.61 inches
Width
410 mm / 16.14 inches
Depth
560 mm / 22.05 inches
Weight
36.4 kg / 80.25 lbs
Shipping information
Package Height
636 mm / 25.04 inches
Package Width
459 mm / 18.07 inches
Package Depth
613 mm / 24.13 inches
Package Weight
43.89 kg / 96.76 lbs
