Dania Beach, Fla., September 18, 2019 – Further continuing its presence in the motorsports market, SounDigital USA announces the new Ground Zero GZCK 250XSPL midwoofer. The new GZCK 250XSPL is an updated version of the successful GZCK 250SPL. Low frequency performance and output have been optimized through several changes to the motor and suspension. “Motorsport Dania Beach, Fla., September 18, 2019 – Further continuing its presence in the motorsports market, SounDigital USA announces the new Ground Zero GZCK 250XSPL midwoofer. The new GZCK 250XSPL is an updated version of the successful GZCK 250SPL. Low frequency performance and output have been optimized through several changes to the motor and suspension. “Motorsport