Architectural Point Source Array Loudspeaker System

Acoustic Technologies ALA04 PSA is a specialist product from within the overall ALA (architectural line array) range of loudspeaker enclosures. The acronym “PSA” stands for Point Source Array - and this concisely describes the enclosure. The ALA04 PSA features an array of 4x 81mm LF/MF drivers + HF tweeter designed to provide the benefits of tight vertical control, while at the same time exhibiting a smooth point source dispersion pattern.

The physical layout of the drivers and the critical crossover design have produced a line array enclosure without the acoustic lobing artefacts in the vertical dispersion pattern commonly encountered in multi-speaker enclosures.

The ALA loudspeaker system components make use of many new production materials including weatherproof PPM cones, neodymium magnet assemblies, perforated aluminium mesh grille and an aluminum extruded chassis which minimizes weight and corrosion issues. The transducers are magnetically shielded.

Acoustic Technologies' engineers developed a simple yet versatile mounting system to satisfy any situation. Rotatable "T" pieces on the rear of the enclosures allow vertical or horizontal installation. A selection of "extender plates" takes care of any required angles.

ALA04 PSA is perfectly suited for audio-visual installations involving large video screens. The full range audio reproduction, superb intelligibility, discrete appearance and smooth point source dispersion pattern make this the ideal loudspeaker enclosure for boardrooms and other high-end AV installations.

There are over 70 decor matched powdercoat colours, allowing the ALA Series to complement any decor styling.

The ALA Series Loudspeaker System is an Australian product, proudly designed and manufactured in our facility in Brisbane, Australia.

Download hi-res image: Front View
Download hi-res image: Front Left View
Download hi-res image: Rear Connectors View
Download ALA04 PSA 3 View Line (CAD) Drawing
Download product information sheet as .PDF
Download the DULUX Powdercoat Colour Chart


Acoustic Technologies has had extensive data measurements performed on the ALA04 PSA by an independent testing facility.
The full EASE and Common Loudspeaker Format (CLF) Data Files are readily available for download.

Download the ALA04 PSA: EASE Data File
Download the ALA04 PSA: CLF2 Data File


Transducer Complement 4x 81mm Fullrange Transducer
1x Soft Dome Tweeter
Frequency Response 120Hz - 20kHz ± 3 dB
Sensitivity 86dB @ 1 watt, 1 metre
Maximum Input 120 Watts Program
Maximum SPL Calculated 107dB @ 1 metre
Dispersion with cabinet vertical at 2kHz 120° Horizontal x 60° Vertical
Nominal Impedance 8 Ohms
Cabinet Material Aluminium Extrusion with Cast End Caps
Grille Material Perforated Aluminium Mesh
Cabinet & Grille Finish Powdercoat
Finish Colours Over 70 colours from which to choose (see Dulux colour chart)
Connectors Screw Terminals
Dimensions Height - 706mm
Width - 105mm
Depth - 73mm (Without mounting "T")
Depth - 110mm (Including mounting "T")
Weight 3.2 Kg

Sensitivity, Maximum Power and SPL measurements are conducted in accordance with the AES 24 Hour Pink Noise Standard. Acoustic Technologies reserve the right to alter or amend the ALA Series, without prior warning in the interests of product improvement.