The PRO versions feature rigid die-cast aluminum baskets for higher stiffness and build quality and are available in a 3-way (16.5cm woofer, 10cm mid-range, and 4.4cm tweeter) and 2-way configuration. The standard R-Series speakers feature composite baskets available in 2-way component and coaxial variations. The all-new speaker networks are much larger compared to the 2nd generation R-Series, to include more and better components and many tuning options. This gives installers many possibilities to adjust the sound perfectly for your vehicle. The 3rd generation of R-Series speakers features a more powerful motor structure (larger magnet size and 35mm voice coil) for increased SPL and bass output and less distortion. The new glass-fiber reinforced cone delivers warm, natural sound, while the HAMR surround ensures maximum cone excursion and control. 6-1/2" (16.5cm) COMPONENT PRO 3-WAYS SPEAKER 65 Hz - 40 kHz 300 Watts peak power 100 Watts RMS power Glass Fiber Dust cap Aluminum die-cast Ferrite magnet Tweeter: 25mm Midrange: 90mm Woofer: 165mm