Constant Curvature Array



Constant Curvature Array
Medium throw system, designed for bi-amping; it can deliver exceptional intelligibility, headroom and power.
World class PA system, designed for theatres and opera houses, clubs, auditoriums and houses of worship
Up to 135° of vertical or horizontal coverage with just 6 elements
139 dB SPL (Peak)
Just 21 kg, aiding safety and easy deployment


Outline SCALA 90 is a medium-throw, Constant Curvature Array enclosure weighing just 21 kg yet capable of a peak SPL of 139 dB.

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).

Scala 90 is designed for venues such as theaters and opera houses, clubs, auditoriums and houses of worship. 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.

Scala 90 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 high-tech black polyurea free scratch finish and the grill has an epoxy powder coating.

Scala 90
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 (AES 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 2 x NL4 in parallel
Cabinet Material Baltic birch plywood
Cabinet Finish Black polyurea coating
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


SCALA 90 Brochure

Oct 2019

SCALA 90 Architectural Specifications

Nov 2021

SCALA 90 User Manual

Nov 2021

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