>An elegant line array system, the distinctive Butterfly from Outline was launched in Frankfurt back in March, but this is its first appearance in the UK. The sub cabinet features an 18" front speaker with a 15" at the rear for cardioid dispersion. The elaborately curved mid/high box, made from steam mould ply, contains 4 x 8" drivers, two diametrically opposed, and a 3" compression driver on a DPRWG (Double Parabolic Reflective Wave Guide). Its flying system is very neat, with a very simple toothed plate connector that allows angle variation between 0° and 12.5° on half-degree increments. GL-based (rather than Excel) software provides comprehensive array curve and delivery calculations.