Martin-audio AM12 商业型音箱

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.

FEATURES

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

TECHNICAL SPECIFICATIONS
TYPE：Compact, two-way passive trapezoid
FREQUENCY RESPONSE (1)：65Hz-18kHz ± 3dB
DRIVERS：12" (300mm) bass driver with waterproof cone
         1" (25mm) exit compression driver
RATED POWER (2)：300W AES, 1200W peak
SENSITIVITY (3)：97dB
MAXIMUM SPL (4)：120dB continuous, 126dB peak
NOMINAL IMPEDANCE：8 ohms
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 fitted