michael chuaApril 27, 2018PRO DRIVERS10", 55-2981, MCM, Pro Woofer MCM 55-2981 Thiele & Small Parameters Thiele & Small Parameters (before Break-in) Sealed Box=45 liters • F3=56Hz • Q=0.82 (Manufacturer’s T/S) Sealed Box=45 liters • F3=47Hz • Q=0.75 (DATS x0.5) Sealed Box=45 liters • F3=52Hz • Q=1.0 (DATS x0.75) BandPass Box=70 liters • Fb=63Hz • Q=0.98 (Manufacturer’s T/S) Updated on Dec 5, 2023