Constant Curvature Array



Medium throw system that can deliver exceptional intelligibility, headroom and power
Up to 135° of vertical or horizontal coverage with just 6 elements
139 dB SPL (Peak)
Designed for bi-amping
‘outSIDE’ coating technology with IP55 protection rating
Special shape of the cabinet so that the water can drain easily (‘outSIDE’ technology)


STADIA 28 – Constant Curvature Array

Outline STADIA 28 is a new addition to the very successful STADIA family of loudspeaker systems designed for the largest sports venues and arenas.

The new module is a medium-throw, Constant Curvature Array enclosure weighing just 21 kg yet capable of a peak SPL of 139 dB. It features the same world-class weather protection and premium audio quality as the rest of the range – – but is designed specifically for smaller venues, providing a very cost-effective solution for locations that don’t need the power of its larger stablemates.

Its usefulness is extended by its ability to be arrayed in either vertical or horizontal orientation, for example with just six cabinets providing a full 135-degree coverage in both deployments. A single element produces a nominal dispersion of 90° x 22.5° (H x V).

Stadia 28 is designed for outdoor areas such as stadiums, theme parks, leisure facilities, tourist attractions and public spaces. The enclosure mounts two 8” partially horn-loaded mid-woofers with neodymium magnets and a 3″-diaphragm compression driver (1.4″ exit) loaded on a waveguide with a unique proprietary design, ensuring the lowest possible distortion levels and greater reliability.

Stadia 28 implements the Outline V-Power concept to specifically control the coupling between the array modules, and all the radiating surfaces of the cabinet are perfectly symmetrical. The suspension hardware is designed to be unobstructive for installations.

The cabinets are constructed from birch plywood finished with ‘OutSIDE’ Coating Technology, an extraordinarily waterproof elastoplastic coating which interacts with the cabinet material to provide extreme levels of long-term protection.

Stadia 28 is fitted with ten M10 threaded rigging points made of corrosion-resistant anodized aluminium alloy (Ergal) allowing suspension and safety cable attachments.


Frequency Response (-10 dB) 65 Hz – 20 kHz
Horizontal Dispersion 90°
Vertical Dispersion 22.5°
Operating configuration Bi-amplified
Impedance Midrange (Nom) 8 Ω
Impedance High (Nom) 8 Ω
Watt AES Midrange (Continuous/Peak) 500 W / 2000 W
Watt AES High (Continuous/Peak) 120 W / 480 W
Maximum SPL Output * 139 dB SPL
* calculated using +12 dB Crest Factor signal (AES2 – 2012)


Component Midrange 2 x 8” NdFeB partially horn loaded, bass-reflex mid woofer
Component High 1 x 3” diaphragm NdFeB compression driver, proprietary waveguide loaded
Connectors 4 Pole barrier strip
Cabinet Material Baltic birch plywood
Cabinet Finish WP elasto-plastic coated (“outSIDE”)
Grill Epoxy powder coated
Rigging 10 x M10 threaded points
Height 309 mm – 12 1/8”
Width 700 mm – 27 4/8”
Depth 500 mm – 19 5/8”
Weight 21.5 kg – 47.4 lb


STADIA 28 Brochure

Apr 2022

STADIA Series Brochure

Mar 2022

STADIA 28 Architectural Specifications

Nov 2021

STADIA 28 User Manual

Jun 2020

Stadia 28 2D Drawings

Stadia 28 3D Drawings

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