RCF RDNet

NETWORKED CONTROL AND MUCH MORE
RDNet is a robust management network and control platform for small, medium and large arena-sized sound systems, as well as complex and extended installations. Based on a proprietary network protocol, RDNet provides intuitive control and monitoring of every connected device/object in the RCF audio system. Each device has DSP to address specific presets or modifications of parameters to single or groups of objects. A network user can change level, delay, EQ (linear phase FiR as well) and other settings, including advanced subwoofer configurations. RDNet is not only designed for loudspeakers—you can control parameters and routing of multiple RCF devices, such as digital matrixes or amplifiers.

THE ACOUSTIC BEAUTY OF THE SYMMETRY

The symmetrical design of the cabinet produces identical left and right coverage of 100°x10°. Component positioning and the special DSP crossover of the HDL 26-A increases the constant directivity, reducing spots of break up or attenuation.

The front baffle provides:

• Coplanar woofers
• Controlled LF dispersion with hybrid-bandpass design
• Central space to host the HF waveguide

LEGENDARY TRANSDUCERS

The RCF HDL 26-A features state of the art RCF transducers with neodymium magnets. RCF’s experienced engineering teams have specially developed and matched each component — starting from the power supply through the input board to the amplifiers and transducers right up to the complete HDL 26-A System.

HIGH FREQUENCIES

• High-performance RCF ND840
• 3.0-inch diaphragm titanium compression driver
• 1.4-inch exit throat
• 750 Hz Crossover Point

LOW FREQUENCIES

• 2 X 2.0”voice coil neodymium 6” woofers
• Low frequencies handling down to 55 Hz
• Water resistant fibre doped cone
• Polycotton M-roll surround
• Hypervented magnetic structure

HYBRID BANDPASS DESIGN

After many computer simulations, tests in anechoic chambers and listening sessions, the woofer arrangement in hybrid bandpass configuration results in a wider and more coherent coverage, allowing a more effective frontal beam with only a few boxes. This arrangement increases the directivity of the line array, doubling the radiation points on low/mid frequencies. The shape of the baffle reduces the turbulence outside the waveguide decreasing the overall distortions.

CLASS-D POWER

The amplifier is a central part of RCF’s product development. The HDL 26-A power section is tailored on the transducers and the cabinet design to reach excellent efficiency, low distortion and high signal-to-noise ratio. Class-D power amplifier technology operating at very low impedance produces extended transient response, while the high damping factor improves sound quality and detail. The amplifier module features +24 dBu input section, a solid machined aluminum structure which not only stabilizes the amplifier during transportation but also helps the fan-less heat dissipation. Low-latency DSP section deploys a remarkable amount of processing power for live performances with straight-forward control and monitoring of single parts of the module, including rigging angles and transducer performance via RDNet. An entire set of protections preserve product life and reliability.

ADVANCED DESIGN

The revolutionary new rigging concept takes inspiration from its big brother: the RCF HDL-30A. The integrated mechanics are both fast and reconfigurable, allowing the system engineer to create J-shaped and spiral arrays starting with 1° angles.

The hardware is designed for easy and fast setup. The angle can be adjusted in advance to hang the system, on the ground, and slip automatically into the correct position when pulling up the array. Up to 20 HDL 26-A modules can be fastened on a single flybar.

The heavy-duty front grille is powder coated. A special transparent-to-sound foam backing inside helps to further protect the transducers from dust. For weatherproof capabilities, a rain cover is available.

NEW PERSPECTIVE ON LINEARITY

RCF speakers are designed using a proprietary and advanced FiR filtering technology, conceived to deliver transparent sound, absolute clarity and perfect stereo images to the listener. The special FiRPHASE filters allow to achieve coherent distribution of sound for all listeners without phase distortions, ensuring minimum latencies to the system.