The Optimal Audio Cuboid 15 is a high-output 2-way passive loudspeaker designed to deliver powerful full-range audio performance in demanding... Read more
£699.00 Incl. VAT
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The Optimal Audio Cuboid 15 is a high-output 2-way passive loudspeaker designed to deliver powerful full-range audio performance in demanding commercial and professional environments. As the largest model in the Cuboid series, it offers maximum output capability, extended low-frequency response, and strong projection, making it ideal for medium to large spaces where impactful sound and consistent coverage are essential.
Engineered for both installation and live applications, the Cuboid 15 combines robust construction with refined acoustic performance, providing a reliable solution for venues requiring high sound pressure levels and clear, detailed audio.
The Cuboid 15 is built around a 15-inch low-frequency driver paired with a high-frequency compression driver, delivering a powerful and full-bodied sound profile with strong bass, defined midrange, and clear high-frequency projection.
With high power handling and peak output levels exceeding 130dB, it is designed for applications requiring significant output and headroom without compromising clarity.
This makes it particularly suitable for:
Configured for 8 ohm operation, the Cuboid 15 is designed to be used with professional amplification, allowing flexible system design across a wide range of applications.
This enables:
The Cuboid 15 features a high-frequency compression driver with a user-rotatable horn, allowing consistent coverage whether installed vertically or horizontally.
With a controlled dispersion pattern of approximately 80° horizontal by 50° vertical, it delivers focused sound distribution across defined listening areas.
This ensures:
The Cuboid 15 is designed for flexible installation, supporting both portrait and landscape mounting with compatible brackets and rigging hardware.
Its durable wooden cabinet and steel grille provide a professional finish suitable for:
As part of the Cuboid range, the Cuboid 15 is optimised for short to medium throw applications, delivering powerful and detailed sound with strong projection and precision.
This makes it particularly effective in:
The Cuboid 15 can be used as a standalone full-range loudspeaker or combined with subwoofers such as the Sub 15 to create a more powerful system for high-impact applications.
It integrates seamlessly with Optimal Audio amplification and control platforms, enabling efficient system setup and optimisation.
The Optimal Audio Cuboid 15 delivers maximum output, extended low-frequency performance, and controlled coverage in a robust and installation-ready design. Its combination of scale, clarity, and flexibility makes it a strong choice for commercial audio systems requiring high-impact, reliable sound reinforcement.
