diffusori da esterno mariner 56Small Mariner Award winning outdoor speakers feature multiple weather resistant technologies. New White and Black color options for vastly improved aesthetics. Completely redesigned woofer, tweeter and crossover with the same materials and technology as our award winning Visual Performance line. A 250% increase in woofer excursion allows for significantly decreased distortion at high volumes. 7. 44mm increase in the diameter of the voice coils for