SIGMA V4 column array is perfect for sound reinforcement installations where discreet aesthetics, high coverage angles and SPL are critical. SIGMA V4 uses 4 x 3 inch full range transducers for warm lows and crystal clear highs. Optimized transducer alignment delivers minimal anti-aliasing effects and maximum phase alignment. With Ultra-wide horizontal dispersion V4, and its larger brother V8, have been voiced to work perfectly with other models in the Wharfedale Pro SIGMA range.