HALO-C

Compact passive line array element

HALO-C

Compact passive line array element

The HALO-C line array element is the main component of the system - delivering breathtaking sonic detail through the use of its AMT high frequency drive unit and bespoke waveguide. Completely passive, with an output SPL which defies its diminuitive size, HALO-C is what makes the HALO Compact system redefine what is possible from a "compact" line array.

Small enclosure footprint and low weight ensure discreet system that is easy to rig

Signature EM Acoustics passive crossover for unprecedented frequency and phase response

High power 8" neodymium LF drive unit, 7.8" neodymium AMT HF drive unit

HALO-C is a development from the original HALO system, keeping the same breathtaking sonic performance that the original HALO system was known for. HALO-C is a truly compact solution – yet as it is capable of continuous sound pressure levels in excess of 120dB it is an ideal solution for small-to-medium theatres, houses of worship, conference & corporate A/V and even small to medium scale live sound reinforcement.

  • True plane wave output waveguide provides seamless array integration
  • Consistent 95° horizontal dispersion pattern
  • Integral four-point flying system supports up to 24 elements with 10:1 safety factor
  • Premium 12mm and 18mm multi-laminate birch plywood cabinet
  • Perforated steel grille with acoustically transparent fabric backing
  • CASE-HALO-C four element touring flightcase optionally available
  • Black or white textured paint finish
  • Optional weather protection or RAL custom colours

HALO-C contains a 197mm (7.8") AMT high frequency drive unit on a bespoke waveguide, linked via a signature EM Acoustics passive crossover to a high power neodymium 8" (203mm) LF drive unit. Exact drive unit placement, coupled with the crossover topology and waveguide design extends the horizontal coverage pattern to below 1kHz. The true plane wave output of the AMT drive unit and waveguide combination yields a precise, well-behaved vertical pattern allowing seamless array integration and minimising destructive interference between adjacent elements.

The HALO Compact enclosure is constructed from premium multi-laminate birch plywood, and is only 492mm (19.4") wide and 17kg (37.4lbs) in weight. Intelligent bracing design minimises panel flexure, thereby reducing unwanted resonance whilst still keeping the enclosure weight low. The design of the rigging hardware is flexible for use in both flown and ground stacked configurations, and allows arrays of up to 24 elements to be assembled whilst retaining a 10:1 safety factor.

A perforated steel grille backed with acoustically transparent black fabric finishes the enclosure with a sleek but stylish appearance. Two NL4 connections are provided on the rear for input and enclosure link.  The enclosure is finished in black or white textured paint as standard, however weather-protection options as well as custom RAL code colours are also available.

HALO-C is ideally powered from the EM Acoustics DQ10 or DQ20 Advanced System Amplifiers, or the AQ-10 power amplifier in conjunction with the DSC48 system controller (for loudspeaker filter slopes and protection) for optimum results.

 

Enclosure TypeTwo-way passive compact line array element
Components1 x 8” (203mm) neodymium LF drive unit
1 x 7.8” (197mm) neodymium AMT HF drive unit
Dimensions (HxWxD), mm/(ins)216 (8.5) x 492 (19.4) x 400 (15.7) mm/(ins) - enclosure only
252 (9.9) x 524 (20.6) x 400 (15.7) mm/(ins) - extremities of rigging/pins
Net/Shipping Weight17/19kg (37.4/41.8lbs)
Frequency Response75Hz – 20kHz ± 3dB
Nominal Dispersion95° horizontal, vertical dependant on array configuration
Maximum SPL124dB continuous, 130dB peak
Power Handling325W RMS, 650W program
Nominal Impedance8 ohms
CrossoverAsymmetric internal passive
Rigging HardwareFour-point integral flying system, tested to 24 elements at 10:1 safety factor secured with aircraft-grade ball-lock pins splay angles 0, 0.5, 1, 1.5 and 2-15° in 1° increments direct interface to HALO-CS enclosures either flown or ground stacked
AccessoriesCASE-HALO-C four element touring flightcase various flying hardware options - see flying hardware datasheet

Case Studies

+

Step Forward At London's Royal Albert Hall

The final result is absolutely brilliantly and the coverage throughout the building is the best it’s ever been. We are really excited at developing this to all users of the Hall over the next coming months.

Read more