Compact passive line array element


Compact passive line array element

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
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.
  • 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 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.

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 a rugged black textured polyurethane or white textured paint as standard, though RAL colour matching and weather-protected outdoor options are 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 Type Two-way passive compact line array element
Components 1 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 Weight 17/19kg (37.4/41.8lbs)
Frequency Response 75Hz – 20kHz ± 3dB
Nominal Dispersion 95° horizontal, vertical dependant on array configuration
Maximum SPL 124dB continuous, 130dB peak
Loudspeakers per amplifier DQ6: 2 per channel, DQ10: 3 per channel, DQ20: 4 per channel
Power Handling 325W RMS, 650W program
Nominal Impedance 8 ohms
Crossover Asymmetric internal passive
Rigging Hardware Four-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
Accessories CASE-HALO-C four element touring flightcase various flying hardware options – see flying hardware datasheet

HM-HALO-C hook mount adapter

SM-HALO-C simple mounting frame


SM-HALO-C adapter


FG Halo Extension Bar


FG-HALO-C master flying grid

2D Product & Accessory drawings in PDF format
2D Product & Accessory drawings in DWG format


Case Studies using this Product

Case Studies using this Product