Lot of 16 Adamson E12 Loudspeakers from a fixed theatre installation, but the touring version. Per 4 on a dolly. Rigging frames are also available

The Adamson E12 is a 3 way line array enclosure, incorporating proprietary transducer and waveguide technology which reduces weight and minimizes its footprint. 

A vector corrected low-excursion 7" Neodymium midrange transducer paired with a next generation 4" HF compression driver energize the drive module and provide seamless mid-high energy with minimized distortion at very high SPL levels. The critically optimized waveguide, based on a prolate-spheroidal geometry ensures precise pattern control and minimum THD, producing a nominal (-6 dB) dispersion pattern of 110° x 8° (H x V). The E-Capsule is flanked with two separate, vented birch ply enclosures, each containing Adamson's proprietary Neodymium 12" woofer, capitalizing on the advantages of Adamson's Advanced Cone Architecture and optimized heat dissipation management of the 4" voice coil.