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After many years of research and engineering, Event has defied conventional audio philosophy and created the Opal. Its woofer, tweeter, amplifier and cabinet all feature innovative and unique design and technology elements, combined to create one of the finest and most accurate studio monitoring systems ever released. Introducing the Opal The no compromise design brief for these speakers was essentially the impossible - to create the most accurate studio monitoring system available. The Woofer The Opal's EX8 mid-low driver is a technical innovation. As a raw speaker it provides a practically unheard of response of 30Hz -10kHz and a power handling up to a staggering 1000 watts. X-Coil refers to the use of a secondary shortening coil on the driver's pole piece. This magnetic coil is set in opposite polarity with the speaker's moving coil, creating a magnetic resistance between the two elements and dramatically increasing both the driver's control and speed of the cone. This in turn improves the mid range dynamics, while exhibiting incredibly low distortion characteristics. Event's patented magnetic motor design, XBL, dramatically increases the effectiveness of the magnetic circuit. This has resulted in the EX8 possessing an unprecedented 36mm of linear excursion. The EX8 features a bespoke cone comprised of a paper pulp and long strand carbon fiber composite that provides extreme stiffness and low mass. While materials such as polypropylene are popular amongst other manufacturers, paper composites provide the finest clarity and 'realness' of sound. The Tweeter The Opal's ULD1 high frequency assembly features a metal-dome tweeter mounted in a unique elliptical waveguide. Early in the Opal development it was decided that a detailed waveguide was critical to controlling the horizontal and vertical dispersion characteristics of the speaker system. The Cabinet The Opal's no compromise cabinet is cast from aluminium to provide a high level of strength and rigidity that minimises resonance. The Opal features front mounted bass reflex ports, contradicting current porting trends that see manufacturers placing ports at the rear of the cabinet to enhance the perception of low frequencies by relying on room reflections, or passive radiators that introduce other acoustic compromises. The Amplifier Like all other elements that combine within the Opal, the amplifier is a completely custom design. With such transparent, low distortion drivers as the EX8 and ULD1 it becomes imperative that the amplifier must have the lowest distortion levels possible. In order to reproduce the dynamics and transient of music facilitated by the EX8 driver, the Opal's power capabilities were focused on burst power over constant power. Up to 1kW of burst power is available to the Opal to deliver the acoustic energy required at low frequencies. The Opal's control electronics were carefully designed, using phase coherent, basic filters that maintain a flat phase response at crossover and equalisation. |
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