Flow 300S. Midrange Speakers 3" Midrange Speakers 55W RMS @ 3Ω Beautiful Sound That Speaks To You. The Harman/Kardon Flow Component System has been engineered to deliver true audio luxury. The Aluminum Deep Ceramic Composite cones (D.C.C) coupled with Plus One™ technology, provides a natural and detailed sound experience. The low-profile outboard crossover network allows the 6-1/2″ 2-way component system to operate as a full 3-way system with the addition of the 3″ Harman/Kardon Flow midrange. Every part of the system has been meticulously crafted to deliver visual excellence and an impeccable audio performance. The Aluminum Deep Ceramic Composite (DCC) cones provide constrained layer damping that pushes cone breakup modes outside of the passband allowing the driver to maintain ideal pistonic motion throughout its range. Pure Audio Perfection. Includes: 3″ (89mm) Midrange woofer for Premium Fitting Applications Power Handling: 60Wrms, 180W peak Sensitivity (@ 2.83V): 91dB Frequency Response: 200Hz – 10kHz Impedance: 4 ohms Gross weight: 0.75 kg *By request/order.