michael chuaApril 18, 2020Drivers Thiele & Small, HIFI DRIVERSFountek, FR88EX, Full Range Fountek FR88EX Thiele & Small (before Break-in) Manufacturer’s Specs Sealed Box=1.5 liters • F3=144Hz (Manufacturer’s T/S) Ported Box=3 liters • Fb=75Hz (Manufacturer’s T/S) Ported Box=3 liters • Fb=75Hz (DATS) Updated on Oct 22, 2023
