michael chuaMay 4, 2018Car Subwoofers, Drivers Thiele & Small10", Car Subwoofers, PW1090, Pyramid, Vintage Vintage Pyramid PW1090-US Thiele & Small Parameters Ported Box=25 liters • F3=60Hz Ported Box=35 liters • F3=53Hz Updated on Nov 1, 2023
