Optimal Audio

Optimal Audio Cuboid 12

Two-Way Passive

Full-Range 12" loudspeaker

The Optimal Audio Cuboid 12 is a high-performance full-range passive loudspeaker, engineered to deliver powerful, detailed sound in large commercial environments. Ideal for bars, live venues, and leisure spaces, it provides excellent coverage, strong low-frequency response, and reliable performance for both background and high-energy audio applications. 

Cuboid 12
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Technical Specifications

TYPE
Two-way, full range, passive loudspeaker
FREQUENCY RESPONSE (with preset)
62Hz - 20kHz ± 3dB -10dB @ 47Hz
DRIVERS
LF: 12” (300mm), ferrite motor system, HF: 1” (25mm) exit/1.4” (36mm) voice coil, polyimide dome compression driver
RATED POWER
300W (AES) 1200W (peak)
NOMINAL IMPEDANCE
SENSITIVITY (1W/1m)
98dB
MAXIMUM SPL
123dB (cont), 129dB (peak)
CROSSOVER
2.5kHz passive
DISPERSION (-6dB)
80˚ H x 50˚ V (user-rotatable)
ENCLOSURE
Trapezoid wooden cabinet
FINISH
Black textured paint
PROTECTIVE GRILLE
Black perforated steel with scrim cloth backing
CONNECTORS
1x NL4, 1x 4 pin Euroblock
PIN CONNECTIONS
NL4 Input only 1+/1-, 4-pin Euroblock with +/- for input and +/- for link connections
FITTINGS
21 x M8, inset bolts
DIMENSIONS
(W) 360mm x (H) 575mm x (D) 392mm (W) 14.17” x (H) 22.64” x (D) 15.43”
WEIGHT
20kg (44.09lbs)
ACCESSORIES (available separately)
Wall Bracket B, U Bracket C, M8 Eye Bolt
RECOMMENDED SUB
Sub 15

Cuboid 12 is a full range, two-way, passive, 12” loudspeaker designed to perform. For applications requiring that extra power and performance, it effortlessly delivers rich and detailed sound with punch and precision.

With its wooden cabinet, steel grille and optional mounting hardware the professionally presented Cuboid 12 can be fixed in either portrait or landscape mode for a flexible, simple installation.

Cuboid 12 features a 12” (300mm) low frequency (LF) driver for added bass and midband with a 1″ (25mm) exit high frequency (HF) compression driver for clarity of vocal and high frequency projection. The HF section delivers consistent coverage in either plane from a user-rotatable horn.

For enhanced bass performance, Cuboid 12 can be teamed with Sub 15.

When teamed with Zone and WebApp, system set up and end user control is simple and intuitive, and can be further complemented by ZonePad wall controllers.

  • Wooden cabinet
  • Portrait or landscape mounting options
  • Rotatable high-frequency horn
  • 62Hz – 20kHz frequency response ±3dB
  • Maximum SPL 123dB (continuous), 129dB (peak)
  • 80° horizontal x 50°  vertical coverage


TYPETwo-way, full range, passive loudspeaker
FREQUENCY RESPONSE (with preset)62Hz - 20kHz ± 3dB -10dB @ 47Hz
DRIVERSLF: 12” (300mm), ferrite motor system, HF: 1” (25mm) exit/1.4” (36mm) voice coil, polyimide dome compression driver
RATED POWER300W (AES) 1200W (peak)
NOMINAL IMPEDANCE
SENSITIVITY (1W/1m) 98dB
MAXIMUM SPL123dB (cont), 129dB (peak)
CROSSOVER2.5kHz passive
DISPERSION (-6dB)80˚ H x 50˚ V (user-rotatable)
ENCLOSURETrapezoid wooden cabinet
FINISHBlack textured paint
PROTECTIVE GRILLEBlack perforated steel with scrim cloth backing
CONNECTORS1x NL4, 1x 4 pin Euroblock
PIN CONNECTIONSNL4 Input only 1+/1-, 4-pin Euroblock with +/- for input and +/- for link connections
FITTINGS21 x M8, inset bolts
DIMENSIONS(W) 360mm x (H) 575mm x (D) 392mm (W) 14.17” x (H) 22.64” x (D) 15.43”
WEIGHT20kg (44.09lbs)
ACCESSORIES (available separately)Wall Bracket B, U Bracket C, M8 Eye Bolt
RECOMMENDED SUBSub 15

About Penguin Media Solutions

Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.

The Institute of Sound, Communications & Visual Engineers | ISCVE
Restaurant & Bar Design Awards Winner

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