Focal TWU1.5 Universal Tweeter A MODULAR TWEETER The TWU1.5 tweeter is designed for custom installation with existing Universal range kits. Easy to fit, four different mounting options are available: flush fit, on angled stand, flat or straight behind the original grill, removing the tweeter from its Focal bracket. This inverted dome tweeter is made of aluminium/magnesium alloy. This gives the trebles an extended frequency response of up to 21 kHz, for clearer, more detailed reproduction. Sold in pairs.