Martin Audio AM12

Stadium Series

As part of the commercial installation range, the Stadium Series provides the contractor with a range of environment specific loudspeakers that integrate seamlessly for use in any sports facility, stadium or arena where high SPL, excellent intelligibility and weather resistance are of prime importance.

The AM Large Format Horns have a stiff, lightweight core of high-density expanded polystyrene, covered with a thermoplastic skin which has an exterior grade coating to increase durability and protection from UV. All other AM enclosures are constructed from marine ply and coated both internally and externally with a textured high-density polyurethane coating. The waterproof cone drivers are protected by heavy-galvanised and polyester-coated punched steel grilles fitted with an integral water barrier.

Martin Audio Stadium Series – performance with safety in mind.

Martin Audio AM12

* 2-Way passive 12 inch system

* Full-range weatherised enclosure

The AM12 is a 2-way passive enclosure that has been specifically designed for applications such as stadiums and arenas where high SPL and weather resistance are of prime importance. The AM12 has a 300 watt 12" (300mm) direct radiating reflex loaded low frequency transducer with a waterproof cone coupled with a 1" (25mm) exit HF compression driver mounted on a rotatable 80º horizontal x 50º vertical constant directivity horn. The enclosure is of a vertical trapezoid design and horizontally formatted to reduce sightline obstruction.

The AM12 is finished, both internally and externally, in a textured, high-density polyurethane coating. It is supplied with a protective grille that is heavy galvanised and powder-coated and fitted with an integral water barrier to ensure product reliability over many years.


Compact two-way passive system

Textured high-density polyurethane coating both

internal and external

User rotatable 80º x 50º horn

High power output

Five year limited warranty


Sports Stadia


Exhibition halls

Technical Specification

TYPE Compact, two-way passive trapezoid


DRIVERS 12" (300mm) bass driver with waterproof cone

1" (25mm) exit compression driver

RATED POWER (2) 300W AES, 1200W peak


MAXIMUM SPL (4) 120dB continuous, 126dB peak


DISPERSION (-6dB) 80º horizontal, 50º vertical

CROSSOVER 2kHz passive

ENCLOSURE 38 litre (1.3 cu foot) vented

Multi laminate birch ply

FINISH Textured high-density polyurethane

coating applied externally and internally

PROTECTIVE GRILLE 18 gauge punched steel, heavy galvanised

and polyester-coated, with integral water barrier

CONNECTORS 3m flying lead, with loop-out option

FITTINGS 12 x M10 threaded inserts

OPTIONS 30W or 150W line transformer (100/70V option)

DIMENSIONS (W) 571mm x (H) 391mm x (D) 345mm

(W) 22.5ins x (H) 15.4ins x (D) 13.6ins

WEIGHT 22.5kg (49.6lbs)

25kg (55.1lbs) with 150W line transformer