The Aero 20A incorporates a new D.A.S. 12" loudspeaker optimized to provide high output and reliability. A light aluminum voice coil bonded to a new fibreglass reinforced cone, an optimized magnet circuit, and a new suspension design, have contributed to the exceptional performance of the 12AN4 in terms of distortion, power handling and maximum SPL. The 12AN4's new voice coil venting scheme is particularly effective in dissipating voice coil heat providing the speaker with a high thermal rating and low power compression.
The high frequency response relies on the M-75N compression driver and a new waveguide assembly developed specifically for the Aero 20A. The compression driver employs a neodymium magnet structure, a titanium diaphragm and 75 mm (3") voice coil. The M-75N is attached to an injected aluminum waveguide optimized to provide exceptional performance in conjunction with the M-75N driver.
A new captive rigging mechanism has been designed to provide enhanced ease-of-use, allowing angle selection to be made while stacked on the transport dolly. A locking system can be triggered to secure angles between adjacent enclosures during the stacking and lifting procedures. Safe rigging and precise aiming is achieved thanks to the AX rigging system and the low-profile fly-bar that reduces the space needed between the upper rigging point and the top of the array.
(Jim Evans)
