The Infinity Cascade? Model Nine floor-standing loudspeaker utilizes two patent-pending Maximum Radiating Surface (MRS) flat-panel drivers with Ceramic Metal Matrix Diaphragms (CMMD?) and a 1″ CMMD tweeter mounted in Infinity’s proprietary Constant Acoustic Impedance? (CAI?) waveguide to deliver uncompromising sonic performance from a strikingly beautiful loudspeaker. The Cascade Model Nine is magnetically shielded and available in a choice of real-wood cherry veneer, high-gloss black or high-gloss silver finish.