Optimal Audio Cuboid 5


Full Range Passive 5″ Loudspeaker

  • Compact dimensions, exceptional performance
  • Mount portrait/landscape with flexibility
  • Max SPL: 105dB continuous, 111dB peak
  • Wide 130° x 120° coverage angle
  • IP54 rated, suitable for outdoors
  • Wall bracket included for installation
  • *Priced per speaker



Optimal Audio Cuboid 5 represents a compact, high-performance 5″ passive loudspeaker system designed to deliver outstanding audio quality for distributed applications requiring superior background music and speech reproduction. Its compact size makes it ideal for various settings, ensuring exceptional sound quality without sacrificing space.

Featuring an appealing design and versatile mounting hardware, Optimal Audio Cuboid 5 offers the flexibility to be installed in either portrait or landscape orientation with ease. Additionally, it comes with a weatherproof terminal cover option, making it suitable for outdoor use with an IP54 rating.

Equipped with a 5.25″ low-frequency driver and a 0.75″ silk dome high-frequency driver paired with a shallow waveguide, Cuboid ensures consistent high-frequency distribution for optimal sound performance.

For those seeking enhanced bass response, Cuboid 5 can be combined with Sub 10, while pairing it with a SmartAmp or powered Zone ensures amplification, customizable sound settings, and driver protection with built-in limiters, especially during louder playback.

Moreover, when integrated with Zone and WebApp, configuring the system and managing user controls become effortless and intuitive. Additionally, the inclusion of ZonePad wall controllers further enhances the overall user experience, providing convenient access to system controls.


Colour Options

Black, White

Maximum SPL


Watts (Peak)

200 W


8 ohms


1x 0.75” Silk Dome, neodymium motor system (HF), 1x 5.25” coated paper, ferrite motor system (LF)

Suitable For Outdoors


Dimensions (W x H x D)

155 x 255 x 150 mm


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