Features & Applications
Features
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Applications
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Detailed Description Cuboid 3
Cuboid 3 is a compact two-way loudspeaker for distributed background music and speech. It pairs a 3.5-inch coated-paper LF driver with a 0.5-inch PEI HF driver and shallow waveguide. Coverage is 130° horizontally by 120° vertically.
The ABS cabinet installs in portrait or landscape orientation using the supplied wall bracket. An optional weatherproof terminal cover brings the loudspeaker to its specified IP54 rating for outdoor use. Power handling is 30 W AES into a nominal 8 Ω load.

A suitable SmartAmp or powered Zone controller supplies amplification and the supported loudspeaker protection presets. A compatible Sub loudspeaker can extend bass performance, while Zone and WebApp manage routing and daily control. ZonePad wall panels add access to the controls where staff need them.
Explore the Optimal Audio range at B-Star. Technical reference: Cuboid 3 datasheet and the Optimal Audio brochure.
Technical Specifications Cuboid 3
ACOUSTICS |
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| TYPE | Two-way, full range, passive 3” loudspeaker |
| FREQUENCY RESPONSE (WITH PRESET) | 125Hz – 20kHz +/-3dB, -10dB @ 80Hz |
| 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 (1 W / 1 m) | 84dB |
| MAXIMUM SPL @1M | 98dB (cont) 104dB (peak) |
| CROSSOVER | 3kHz |
| DISPERSION (-6DB) | 130°H x 120°V |
CONSTRUCTION & INSTALLATION |
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| ENCLOSURE | ABS |
| FINISH | Paint |
| PROTECTIVE GRILLE | Painted Aluminium |
| FITTINGS | M4 mounting points for wall bracket |
CONNECTIONS |
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| CONNECTORS | 4 pin Euroblock |
| PIN CONNECTIONS (INPUT) | Positive and negative in with link out terminals |
DIMENSIONS & WEIGHT |
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| DIMENSIONS | (W)120mm x (H)190mm x (D)118mm |
| WEIGHT | 1.26kg (2.8lb) |
ACCESSORIES & SYSTEM MATCHING |
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| RECOMMENDED SUB | Sub 10 |
| RECOMMENDED AMP | Zone, SmartAmp |


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