EM Acoustics has introduced the new HALO Arena (HALO-A) large-format, 2-way line array to the North American market.
HALO-A follows the same core design as the more compact HALO-C, designed to provide consistency of performance regardless of SPL level. It utilizes a proprietary patent-pending emulation manifold that combines the energy of four 1.4-inch exit (3.4-inch diaphragm) compression drivers into a plane-wave array. This assembly gives a significant moving area for the high-frequency section while also increasing headroom.
The HF section is flanked by a pair of 12-inch (3.5-inch voice coil) neodymium low-frequency transducers. These two drive units work with optimally-tuned low turbulence porting and generous cabinet volume for enhanced LF performance.
A single HALO-A is stated to exhibit a flat free-field frequency response from 48 Hz to 19 kHz (+/-3 dB) and a phase response that is +/- 20 degrees between 150 Hz and 18 kHz. Due to the unique loading technique applied to the LF drivers, combined with the HF waveguide, the dispersion pattern control is stated to be maintained down to 250 Hz.
HALO-A requires two amplifier channels and makes use of the latest in FIR DSP technology, requiring use of the EM Acoustics DQ20 amplifier. The enclosure is constructed from premium 5/8-inch (15 mm) and 1 3/16-inch (30 mm) multi-laminate Baltic birch plywood, rebated, screwed and glued together for maximum strength. Intelligent bracing combined with a low-loss porting structure help minimize unwanted resonances while also lowering overall enclosure weight.
Cabinets, finished in a weather-resistant polyurethane coating, measure 14.3 x 40.2 x 24.4 inches (H x W x D) and weigh 145.2 pounds. They are equipped with a 3-point flying system assembled from high tensile strength steel parts coated with Zylan for enhanced durability.