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Optimal Audio Cuboid 3 - 3" Two-Way Passive Loudspeaker 30W

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Original price £72.00 (inc. VAT) - Original price £72.00 (inc. VAT)
Original price
£72.00 (inc. VAT)
£72.00 (inc. VAT) - £72.00 (inc. VAT)
Current price £72.00 (inc. VAT)
Colour: Black

Compact, discreet and powerful, the 30Wrms Cuboid 3 offers exceptional sound and is ideal for both commercial and residential use

The Cuboid series from Optimal Audio boasts a versatile series of full-range, two-way passive loudspeakers engineered to deliver rich, detailed sound with remarkable precision, all while maintaining a cost-competitive price point.

Available in sizes ranging from 3" to 15", these sleek enclosures are designed for short to medium throw distances, making them ideal for a variety of applications. Whether you're outfitting a small venue, conference room, or performance space, Cuboid speakers provide professional-grade sound reproduction with punch and clarity.

Crafted for both style and functionality, Cuboid speakers feature flexible mounting hardware for easy installation, ensuring a clean and seamless setup. Each speaker is meticulously engineered to deliver impressive bass and mid-range response, while maintaining exceptional vocal clarity and projection in the high frequencies.

The Cuboid lineup offers options to suit different preferences and needs. Models such as Cuboid 3, 5, and 6 boast ABS plastic cabinets and painted aluminum grilles, while Cuboid 8, 10, 12, and 15 feature robust wooden cabinets with steel grilles. Additionally, the latter models feature user-rotatable horns, allowing for consistent coverage in both horizontal and vertical planes.

For those seeking enhanced bass performance, Cuboid speakers can be paired with the Sub Series, while integration with SmartAmp or Zone amplifiers provides optimal sound settings and built-in limiters to protect drivers during high-volume use.

Streamlined system setup and user control are made easy with Zone and WebApp compatibility, further augmented by the convenience of ZonePad wall controllers.

With Cuboid, achieving exceptional sound quality and seamless control has never been simpler. Elevate your audio experience with Cuboid loudspeakers—a perfect balance of performance, versatility, and affordability.


Optimal Audio Cuboid 3 Key Features

  • Discreet size, high performance

  • Portrait or landscape mounting options

  • Wall bracket included

  • Max SPL 98dB (continuous) 104dB (peak)

  • 130° horizontal x 120° vertical coverage

  • IP54 for outdoor use with accessory terminal cover


Optimal Audio Cuboid 3 Specifications

  • Type: Two-way, full-range, passive 3” loudspeaker  
  • Frequency Response: 125Hz - 20kHz +/-3dB, -10dB @ 80Hz (with preset)  
  • Drivers: 
      - LF: 3.5”(90mm) coated paper, ferrite motor system.
      - HF: 0.5” (12.5mm) PEI Diaphragm neodymium motor system  
  • IP Rating: IP54 when used with accessory terminal cover  
  • Rated Power: 30 W (AES) 120W (peak)  
  • Nominal Impedance: 8Ω  
  • Sensitivity (1W/1m): 84dB  
  • Maximum SPL @1m: 98dB (cont) 104dB (peak)  
  • Crossover: 3kHz  
  • Dispersion (-6dB): 130°H x 120°V  
  • Enclosure: ABS  
  • Finish: Paint  
  • Protective Grille: Painted Aluminium  
  • Connectors: 4-pin Euroblock  
  • Pin Connections (Input): Positive and negative in with link out terminals  
  • Fittings: M4 mounting points for wall bracket  
  • Dimensions: (W)120mm x (H)190mm x (D)118mm / (W)4.7” x (H)7.5” x (D)4.7” 
  • Weight: 1.26kg (2.8lb)  
  • Recommended Sub: Sub 10  
  • Recommended Amp: Zone, SmartAmp

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