Optimal Audio Cuboid 15 - Two-way 15" speaker with high sound quality

Regular price €1.069,00
Regular price Sale price €1.069,00
Tax included. Shipping calculated at checkout.
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GPSR Information

Name: Optimal Audio Group Ltd.

Address: Century Point / Halifax Road / Cressex Business Park / High Wycombe / Buckinghamshire / HP12 3SL / United Kingdom

Email: info@optimal-audio.co.uk

Website: https://optimal-audio.co.uk

European Manufacturer: No

Regular price €1.069,00
Regular price Sale price €1.069,00

Optimal Audio Cuboid 15 – your powerful 15" speaker for impressive sound quality

The Optimal Audio Cuboid 15 is a versatile, two-way, passive loudspeaker that impresses with its excellent sound quality. Equipped with a 15-inch woofer and a rotatable high-frequency horn, it offers exceptional performance for a wide range of applications. Whether in concert halls, at events or in fixed installations - this loudspeaker always delivers clear and powerful results. With a frequency range of 58Hz to 18kHz and a maximum sound pressure level of 132dB, the Cuboid 15 covers the entire hearing spectrum.


Powerful sound for versatile applications

The Optimal Audio Cuboid 15 is perfect for:

  • Live events: Experience powerful and detailed reproduction of music and speech.
  • Fixed installations: Ideal for clubs, churches, conference rooms and auditoriums.
  • Flexible setups: Thanks to the ability to mount the speaker in portrait or landscape format, it adapts to any environment and requirement.

With its precise coverage of 80° horizontally and 50° vertically, it ensures an even distribution of sound, regardless of the position in the room.


Robust design for professional requirements

The loudspeaker is housed in a robust wooden housing that is not only aesthetically pleasing but also extremely durable. The high-quality workmanship guarantees a long service life, even under demanding conditions.

The rotatable high-frequency horn allows flexible adjustment of the sound distribution, so that the Cuboid 15 works perfectly in both portrait and landscape format.


Advantages at a glance

  • Sound quality: Wide frequency range and high sound pressure level for clear and powerful reproduction.
  • Flexibility: Adaptable design for different installation types and sound requirements.
  • Durability: Robust wooden housing for long-lasting use.
  • Easy installation: Multiple mounting options make integration into existing systems effortless.

care and usage instructions

To maximize the lifespan of the Optimal Audio Cuboid 15:

  • Avoid extreme temperatures and humidity.
  • When cleaning, use a dry or slightly damp microfiber cloth.
  • Make sure the cable connections are secure and free from damage.

Technical data

  • Type: Two-way passive speaker
  • woofer: 15 inches
  • Frequency range: 58Hz – 18kHz (±3dB)
  • Max. SPL: 126dB (continuous), 132dB (peak)
  • Coverage: 80° horizontal x 50° vertical
  • Material: wooden case
  • Mounting options: portrait or landscape format
  • Special feature: Rotatable high-frequency horn
  • Applications: Live events, installations, clubs, churches, auditoriums

Do you have questions about a product or would you like an individual offer?
Please feel free to contact us – we are here for you! Our team will advise you personally and create a tailor-made offer that is precisely tailored to your needs.