The demands of modern sound reinforcement systems are higher than ever before. While pure performance - high sound pressure levels, constant directivity and sound quality - are fundamental characteristics, other aspects are important for rental and production companies, such as reduced weight and ease of use to optimize transport and rigging time.
The HDL System is changing the concept of large format arrays,
providing first class performance to an extended market of professional users.
The HDL System is composed of HDL 30-A and HDL 50-A, equipped with modern and innovative technology. Each component has been consistently and specially developed by RCF’s experienced engineering teams, with all components carefully matched to each other. This complete integration of all components allows not only superior performance and maximum operational reliability, but also provides users easy handling and plug & play comfort. Besides this important fact, active speakers offer valuable advantages: while passive speakers often need long cable runs, the energy loss due to the cable resistance is a huge factor. This effect is irrelevant in powered speakers where the amplifier is just a couple of centimeters away from the transducer. An active sound reinforcement system means more than just having amplifiers packed into a speaker housing. The real innovation is when each single component is controlled by individual DSP settings. Scaling a line array is the most important aspect when talking about best performance and coverage. Where passive systems have limits in impedance load or number of amplifier channels, an active RCF sound system is freely scalable and individually controllable. Having an HDL system gives you the freedom to work at many different locations with the same system, merely changing the number of modules.
GLI INNOVATORI DEI TRASDUTTORI
La linea di diffusori RCF integra una vasta gamma di trasduttori in grado di coprire l’intero spettro audio. Progettiamo i nostri trasduttori per ottimizzare il rapporto tra la purezza del suono, l'assenza di distorsione e la capacità di sopportare livelli di potenza elevati per un lungo periodo di tempo. RCF sviluppa tecnologia avanzata per trasduttori, inclusa l’applicazione di materiali high-tech, come il Neodimio, la Fibra di Carbonio, il Titanio puro, il Kevlar, il Kapton e gli ibridi di Mylar. Con oltre 70 anni di esperienza nel settore in progettazione e produzione, RCF è stata fondamentale in invenzioni tecnologiche come lo stampaggio dei coni in fibra di carbonio, il doppio centratore in silicone, gli avvolgimenti interno/esterno nella produzione di bobine mobili “edge-wound” e la sagomatura dei diaframmi in titanio puro. I nostri ultimi sviluppi hanno portato alla progettazione di circuiti magnetici al neodimio all'avanguardia, sistemi di ventilazione delle bobine mobili e assemblaggi di bobine mobili direct-drive innovativi.
DUAL SILICON SPIDERS
RCF’s original invention of the dual silicone sealed spider design offers many advantages: the two spiders offer double resistance to fatigue. The silicone between the cloth layers, being a very high memory material, provides the best shape stability to the spiders. The system, being sealed, functions as an air pump expelling hot air and drawing in cool air every time the cone assembly moves.
COMPLEX HYPER-VENTING COOLINGS
In our complex cooling designs individual components come together to create an ideal ventilation system. Finned cooling channels dissipate heat efficiently, the dust cap and the sealed spiders function as an air pump, expelling hot air and drawing in cool air every time the cone assembly moves. Many openings are situated directly on the transducer’s side and on the rear plate.
INSIDE - OUTSIDE VOICE COILS
RCF has developed a unique voice coil, combining the advantages of inside/outside technology to the superior quality of polyimideimide materials (wire resins and formers resins). The inside/outside coil offers many advantages:
- The dissipation surface is doubled
- The adhesion area to the former is doubled
- During thermal expansion the Former is squeezed between inside and outside layers offering the best mechanical resistance.
CUSTOM HIGH FREQUENCY WAVEGUIDES
The HDL custom 4PATH designed waveguide allows precise coverage of 90 x 10 degrees (HDL 50-A) and 100 x 15 degrees (HDL 30-A), while also delivering a superb, linear high frequency response. The unique shape of the four ducts forming the guide creates an ideal isophasic load from the crossover frequency to the highest audible frequencies.
DIRECT DRIVE VOICE COIL ASSEMBLIES
The top of the former is bent and bonded directly to the edge of the titanium diaphragm resulting in a Direct Drive configuration. Direct Drive guarantees optimal transfer of energy between the voice coil and the dome assembly, providing smoother, extended frequency response beyond 10 KHz, reducing break up modes and lowering distortion. This assembly delivers high power handling along with excellent mechanical and thermal properties that make RCF neodymium compression drivers robust and reliable.
HDL SYSTEM CONFIGURATIONS
From small rooms to big venues, the HDL system flexibility covers all the acoustic needs of the sound engineer.
Thanks to the full HDL accessory range and the infinite possibilities of the RDNet Networked Control, reaching the best listening experience on any venue is an easy task.
Check out some standard configurations to understand the system set-up and management.