The no compromise design brief for these speakers was essentially the impossible - to create the most accurate studio monitoring system available.
The Opal was to be an 8-inch two-way speaker with the same dynamic and extended mid-range as the most expensive esoteric three-way systems. It had to feature extended and powerful bass response, and have seamless and transparent integration through all the frequency range. Distortion was entirely unacceptable.
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.
The Opal's EX8 mid-low driver is a technical innovation. As a raw speaker it provides a practically unheard of response of30Hz -10kHz and a power handling up to a staggering 1000 watts.
Designed completely from scratch and specifically for the Opal, the EX8 is capable of reproducing mid-range frequencies with the clarity and speed of dedicated mid-range drivers. At the same time it can deliver defined and accurate frequencies down to the Opal cut off of 35Hz, without resorting to rear-porting and manipulation of the listening space.
Two proprietary EVENT technologies allow for this previously unimaginable performance from a single driver -X-Coil and XBL.
The Opal's high frequency assembly features a metal-dome tweeter mounted in a unique elliptical waveguide.
It combines an ultra-light and rigid aluminium-magnesium alloy with a low resonance Sonomax surround to provide the Opal with unbelievable high frequency definition while minimising any distortion, this results in incredibly low harmonic distortion at all power levels, up to several factors lower than tweeters found in other esoteric Hi-fi and monitoring speakers.
Painstaking attention was given to the relationship between the tweeter dome, suspension, motor and waveguide, to ensure that output, directional control and power response was acoustically optimised, and in turn tuned to work in perfect synergy with the EX8 woofer.
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.
By focusing on sound circuitry design the Event engineering team has achieved a four-layer PCB that exhibits less than 0.005% total harmonic distortion (THD). Additionally a 'soft clipping' circuit is employed, allowing the signal to maintain an organic wave structure even as the amplifier eventually enters clipping. This dramatically decreases the perceived distortion of the audio signal.
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