Overview:

MARTIN AUDIO OmniLine® delivers consistent audio coverage with unprecedented accuracy in a wide variety of architectural environments, using only one amplifier channel per array in many applications. By utilising a complement of unique, Martin Audio designed drivers, and mechanical alignment techniques, simple EQ and Limiting is the only processing required. A powerful software application provides extremely accurate intercabinet and array angles, in order to achieve optimum coverage over a predefined area. OmniLine's aesthetically pleasing cabinet is finished in neutral light grey.

Each OmniLine array is constructed by connecting together multiple array modules. Up to 32 modules can be connected where both high output and vertical focussing down to low/mid frequencies are required. Smaller numbers of modules (down to 4) can be used for shorter-throw applications, where vertical focussing of these frequencies is less important.

Rather than applying DSP to a traditional column, OmniLine’s vertical beam-forming is achieved by physically articulating individual array modules to curve the array. The actual array configuration for a specific venue is determined by powerful, patent pending optimisation software which makes intelligent judgements about the ‘goodness’ of the array’s SPL distribution against objective target functions.

• OmniLine uses a line of five custom-designed dome tweeters, with a spacing of only 21mm between each element. The result is sidelobe-free vertical dispersion from the high frequency section.
• The ‘cones’ of the custom-designed LF drivers are sculpted from an ultra-light, stiff material and precisely follow the ideal contour of the HF horn walls (patent pending). This provides constant horizontal directivity from low mid, right up to extreme high frequencies.

Sidelobe Free

• OmniLine uses a line of five custom-designed dome tweeters, with a spacing of only 21mm between each element. The result is sidelobe-free vertical dispersion from the high frequency section.
• Compare this to using off-the-shelf 1" (25mm) dome tweeters. Sidelobes as loud as the main (red) lobe appear at frequencies as low as 8kHz; well within the audio band

LF drivers

The “cones” of the LF drivers are sculpted from an ultra-light, stiff material and precisely follow the ideal contour of the HF horn walls (patent pending). This provides constant horizontal directivity from low mid, right up to extreme high frequencies.

• Conventional cross-firing driver configurations typically yield non-optimal HF horn profiles, which causes significant disturbance to HF dispersion that also varies with frequency.
• In short, anything but constant directivity!

Modular construction

• Each array is constructed in multiples of 4 modules to make up arrays of 4, 8, 12, 16, 24 or 32 modules.  Resultant array lengths are 0.47m, 0.94m, 1.4m, 1.9m, 2.8m and 3.7m respectively.

Inter-cabinet connection

• Inter-cabinet angles are set via captive, rear-mounted brackets and linking plates. Angles of 0° to 5° are set in 1° steps by fitting two pin clamps into the respective holes in each cabinet’s bracket. Once each angle is set, an orange ‘safety clip’ is fitted to lock the pin clamps in place.
• Finally the rear covers are fitted to maintain the sleek, unobtrusive appearance required of an architectural loudspeaker product.

Deployment

• Arrays can be wall mounted or flown via optional brackets.They are designed to be unobtrusive and adaptable in order toblend in with their environment.

Wall mounting

• Up to 16 cabinets can be wall mounted using the optional brackets. Pan and tilt are easily achievable. Arrays can be panned left or right and then the bracket locked in position. Tilt is achieved by setting the length of a wire rope or chain‘pull-back’ strap, allowing accurate on-site adjustment of array aiming. The brackets are designed as 1st/2nd fix components in accordance with typical installation methods.

Applications

• Churches, Museums, Sports venues, Conference centres,
• Theatres, Auditoria, Shopping malls, Transport terminals,
• Concert halls, Bars, Restaurants, Lecture theatres