The professional lighting industry has witnessed a significant technological leap with the official introduction of the Cluster B2 EVO and Cluster B4 EVO by Roxx, a move that redefines the standards for modern audience blinders. Unveiled at the LEAT Con trade fair, these new fixtures represent a sophisticated fusion of traditional aesthetics and cutting-edge LED engineering. By integrating a patent-pending two-zone LED array with a custom-developed glass lens inspired by the classic DWE tungsten lamps, Roxx has addressed a long-standing demand in the event production sector: the need for an LED blinder that not only mimics the warm dimming curve of halogen lamps but also replicates the physical visual appearance of a glowing filament. This development comes at a time when production companies are increasingly seeking energy-efficient alternatives to traditional tungsten fixtures without sacrificing the "classic" look that has defined concert and festival lighting for decades.
The Evolution of the Audience Blinder: From Tungsten to EVO Technology
The audience blinder has been a staple of live performance lighting since the early days of rock and roll. Traditionally, these fixtures relied on DWE (Direct Wired Equipment) lamps—parabolic aluminized reflector (PAR) lamps that provided a massive burst of warm, amber-tinted light. While the industry has shifted toward LED technology to reduce power consumption and heat, early LED blinders often struggled to satisfy lighting designers who missed the "soul" of tungsten. The primary criticism of early LED iterations was their sterile visual appearance; while the light hitting the audience might have been the correct color, the fixture itself looked like a flat panel of diodes rather than a living, breathing light source.
Roxx’s "EVO" concept directly addresses this visual gap. The development team at Roxx recognized that for an audience blinder, the light source is as much a part of the stage scenery as the light it emits. In a typical concert setting, the audience looks directly into the fixture. Therefore, the lens and the internal structure of the lamp are critical components of the visual experience. The Cluster B2 EVO and B4 EVO were engineered to bridge this gap, ensuring that the transition from traditional tungsten to modern LED is visually seamless for the spectator.
Advanced Optical Engineering and the Patent-Pending LED Array
At the heart of the EVO series lies a breakthrough in optical design. Roxx has introduced a DWE-inspired glass lens that features the characteristic elongated structures found in classic halogen lamps. This is not merely a cosmetic addition; the lens works in tandem with a sophisticated, patent-pending two-zone LED array to create a multi-dimensional light source.
The LED engine is divided into two distinct functional areas. The central zone consists of a dedicated Amber LED section designed to simulate a glowing filament. This core mimics the "hotspot" and the subtle irregularities of a heating tungsten wire, providing a focal point that draws the eye in a way that standard flat LED arrays cannot. Surrounding this amber core is a secondary RGB+WW (Red, Green, Blue, and Warm White) zone. This outer ring allows for a wide spectrum of creative color possibilities, enabling lighting designers to use the fixtures for more than just white-light blinding effects.
The simulation of the tungsten experience extends into the physics of dimming. A real tungsten filament does not illuminate or extinguish instantly; it has a thermal lag that creates a "glow" during the fade-in and fade-out phases. Furthermore, as the intensity decreases, the color temperature shifts toward a warmer, deeper orange—a phenomenon known as "amber shift." The EVO series replicates these characteristics with precision, ensuring that even at low intensities, the fixtures maintain the organic, "warm" feel that designers expect from high-end production gear.
Unprecedented Power Output and Technical Specifications
While the visual aesthetics of the EVO series pay homage to the past, the performance metrics are firmly rooted in the future. Each blinder cell within the EVO fixtures is powered by a 750W RGBA+WW LED engine. This marks a massive increase in power compared to the previous Cluster FC generation, which utilized 300W engines.
The resulting light output is substantial. The Cluster B2 EVO, featuring two blinder cells, is capable of producing up to 40,000 lumens at a color temperature of 3,000 K. Its larger counterpart, the Cluster B4 EVO, doubles this capacity with four blinder cells, delivering a staggering 80,000 lumens. This level of brightness ensures that the fixtures can perform effectively on the largest stadium stages, where they must compete with high-intensity LED screens and powerful moving head fixtures.
In addition to brightness, Roxx has focused on the practicalities of field use. Both the B2 and B4 models are rated IP66, providing total protection against dust and high-pressure water jets. This rugged construction makes the EVO series suitable for permanent outdoor installations and demanding festival environments where weather conditions can be unpredictable. Despite the significant increase in power, Roxx has managed to reduce the physical weight of the units. The B2 EVO weighs approximately 8.55 kg, while the B4 EVO weighs 14.2 kg. This represents a weight reduction of up to 20 percent compared to previous models, a factor that significantly eases the burden on rigging points and simplifies transport logistics for touring productions.
System Integration and Ecosystem Compatibility
One of the standout features of the Roxx philosophy is the commitment to a unified ecosystem. The EVO platform has been designed to integrate seamlessly with existing hardware in the Cluster series. For rental houses and production companies that have already invested in Roxx technology, this means that all existing mechanical components, brackets, and accessories remain fully compatible with the new EVO units.
To further protect customer investment, Roxx has included a "Legacy Mode" in the EVO software. This feature allows the new B2 and B4 EVO models to be used alongside the older Cluster B2 FC and B4 FC units in the same lighting rig. When Legacy Mode is active, the EVO fixtures adjust their behavior to match the color rendering and dimming curves of the previous generation, ensuring a uniform look across the stage. This allows companies to phase in the new technology gradually rather than requiring a complete fleet replacement.
The user interface has also seen significant upgrades. The fixtures feature high-resolution displays and backlit buttons for easy configuration in dark backstage environments. Modern connectivity options, including USB-C for firmware updates and NFC (Near Field Communication) for wireless configuration via smartphone apps, have been integrated as standard. Furthermore, the units utilize Roxx’s proprietary "Klstr" technology, which simplifies the data and power linking of multiple fixtures in large arrays.
Official Statements and Industry Context
Daniel Garcia, the Managing Director of Roxx and the Director of Research and Development, emphasized that the EVO series was born out of a desire to achieve more than just technical parity with tungsten. "For years, manufacturers have tried with more or less success to give LED blinders the dimming behavior and warm glow of tungsten light sources," Garcia stated during the product launch. "For us, that was no longer enough. We wanted to get much closer to the original—not just in how the light behaves, but also in what you actually see when you look directly into the spotlight."
Garcia highlighted that the "True Classic" nature of the EVO series comes from the fine irregularities in the glow pattern, the structure of the lens, and the presence of a visible "filament." This attention to detail is what Roxx believes will set the EVO series apart in a crowded market. Industry analysts suggest that this focus on the "visual texture" of the light source is a response to the increasing high-definition nature of concert filming; as cameras get better, the flaws of standard LED arrays become more apparent, necessitating more sophisticated optical solutions like those found in the EVO.
Impact on the Rental and Touring Market
The introduction of the Cluster B2 and B4 EVO is expected to have a notable impact on the rental market. Audience blinders are high-frequency rental items, used in almost every genre of live performance. The combination of IP66 durability, reduced weight, and extreme lumen output makes the EVO series a highly versatile asset.
From a sustainability perspective, the move from 300W to 750W LED engines—while seemingly higher in power—still offers a massive reduction in energy consumption compared to the thousands of watts required by traditional tungsten blinder arrays to achieve similar coverage. Additionally, the longevity of LED sources reduces the need for frequent lamp replacements, which was a significant maintenance cost and environmental waste factor for DWE-based systems.
As the industry gathers at LEAT Con in Hall A1 to witness these fixtures in person, the consensus among early adopters is that Roxx has successfully navigated the difficult balance between nostalgic aesthetics and modern performance. The Cluster B2 EVO and B4 EVO are not just replacements for older LED fixtures; they are a tribute to the history of stage lighting, reimagined for the technical demands of the 21st century. By prioritizing the "True Classic" look, Roxx has provided lighting designers with a tool that respects the traditions of the craft while providing the reliability and power of the latest technological innovations.
