Martin Audio O-Line

O-Line


O-Line delivers consistent audio coverage with unprecedented accuracy in a wide variety of architectural environments, using just 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.


An O-Line module 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 two 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.


Rather than applying DSP to a traditional column, O-Line’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.


O-Line arrays are constructed by simply connecting individual modules together in column lengths of 4 to 24 units as determined by the software.


O-Line modules are finished in a neutral light grey and combine to form aesthetically pleasing, variable length arrays, of outstanding audio quality that will enhance even the most demanding architectural environment.


Martin Audio O-Line

* 2-way Passive

* 2 x 3.5" micro-line array system


O-Line 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. O-Line's aesthetically pleasing cabinet is finished in neutral light grey.


Each O-Line array is constructed by connecting together multiple array modules. Up to 24 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, O-Line'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.


O-Line 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.


Applications

Churches, Museums, Sports venues, Conference centres,

Theatres, Auditoria, Shopping malls, Transport terminals,

Concert halls, Bars, Restaurants, Lecture theatres

Technical Specification


Technical Specifications: One Module

TYPE Two-way micro-line array module

FREQUENCY RESPONSE (5) 85Hz-20kHz ± 3dB -10dB @ 76Hz

DRIVERS 2 x 3.5" (87mm)/1" (25mm) voice coil LF drivers

5 x 0.55" (14mm) soft dome tweeters

RATED POWER (2) 50W AES, 200W peak

RECOMMENDED AMPLIFIER 100W-200W in to 16 ohms

SENSITIVITY (6) 84dB at LF rising to 92dB at HF

MAXIMUM SPL (7) 104dB continuous, 110dB peak

NOMINAL IMPEDANCE 16 ohms

DISPERSION (-6dB) 100º horizontal, 5º vertical

CROSSOVER 2.5 kHz passive

ENCLOSURE 4 litre ported cabinet, moulded in ABS

FINISH Light grey

PROTECTIVE GRILLE Light grey perforated steel

CONNECTORS 4 pole socket

PIN CONNECTIONS +/- in, +/- link out

FITTINGS Captive inter-connecting bracket assembly

6 x M8 fixings for wall and flying brackets

DIMENSIONS (W) 246mm x (H) 115mm x (D) 198mm

(W) 9.7ins x (H) 4.5ins x (D) 7.8ins

WEIGHT 3.6kg (7.9lbs)

Technical Specifications: Array

No. of modules 4 8 16

Sensitivity (6),(2.83V) 96dB 96dB 102dB

Impedance 4 ohms 8 ohms 4 ohms

Power handling(Watts, AES) 200 cont. 400 cont. 800 cont.

800 peak 1600 peak 3200 peak

Maximum SPL (cont./peak) 116dB/122dB 122dB/128dB 128dB/134dB

Max coveragedistance 8-12m 16-25m 25-40m

Array length 0.47m 0.94m 1.9m

Array mass 14.4kg 28.8kg 57.6kg