Details about the Focal 165 AS 3 3 way drivers kit, 6 1/2″ (165mm) for the woofer and 3 15/16″ (100mm) for the midrange. Accurate separate crossover with tweeter adjustment on 3 levels. TN44 tweeter with aluminum inverted dome tweeter. High end car audio kit with high acceptable power. Specifications: woofer All weather woven fiberglass tweeter TN44 chassis 20% Fiberglass filled ABS max power 160W nominal power 80W sensitivity 90 dB frequency response 55Hz – 20kHz