Continuing the company’s surge into the installation market, Martin Audio has enlarged its Stadium Series to include three new enclosures suitable for more environmentally-demanding applications. These are the AM10, AM12 and AM15.

These loudspeakers have been specifically designed for applications such as stadiums and arenas where high SPL and weather resistance are of prime importance. All three enclosures are of a vertical trapezoid design and horizontally formatted to reduce sightline obstruction. A new plastic paint finish, together with a galvanised and powder-coated steel grille, with a declon foam backing, ensures that the enclosure is waterproof in all but the most extreme conditions.

The AM10 has a 300W 10in (250mm) LF driver coupled with a 1in (25mm) exit HF compression driver mounted on a rotatable 90° horizontal x 50° vertical constant directivity horn. The AM12 has a 300W 12in (300mm) LF driver coupled with a 1in (25mm) exit HF compression driver mounted on a rotatable 80° horizontal x 50° vertical constant directivity horn. And finally the AM15 has a 400W 15in (380mm) LF driver coupled with a 1.4in (35mm) exit HF compression driver mounted on a rotatable 80° horizontal x 50° vertical constant directivity horn.

Connection to all three enclosures is via a flying lead secured through a waterproof gland. All internal metalwork is galvanised. The enclosures have 12 x 10mm threaded inserts fitted with copper coated and blacked steel bolts. Each loudspeaker is fitted with a passive crossover network and is also available with an optional 150W or 50W 100/70 volt line transformer; tapping adjustments are made via spade terminals which are accessed through a removable rear panel.