Martin Audio Full-range Weatherised Enclosure AM12 User manual

AM12
Full-range weatherised enclosure
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
applications
!Sports Stadia
!Arenas
!Exhibition halls
Century Point, Halifax Road, Cressex Business Park,
High Wycombe, Buckinghamshire HP12 3SL, England.
Telephone: [phone] Facsimile: [phone]
E-mail: [email protected]
All information is Copyright © 2003 Martin Audio Ltd.
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 80˚ horizontal x
50˚ 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.
architectual
www.martin-audio.com
overall dimensions
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