We built all of our cutting-edge experience into the Premier REV-series TS-D901R 6” x 9” 2-way speakers. They feature dual-layer Kevlar® cones for intense strength and rigidity. Laminated polyester soft dome tweeters for smooth, detailed highs. 350-watt max. power handling. A high-performance crossover for smoother mid-to-high transitions. Also part of the package: a new spoke grille design, a REV-exclusive full-depth basket, new wave guides, and the distinctive yellow cone color. This next-generation speaker will take your mobile audio system to a new level. New Dual-Layer Kevlar® Cone Our REV speakers feature a newly designed cone comprised of two layers: an outer layer of ceramic-coated Kevlar® and an inner layer of Pioneer’s IMPP reinforced with Kevlar® fiber. This dual-layer construction along with the light weight, rigidity, and incredible strength of Kevlar® offer some great advantages over other speakers. They deliver excellent responsiveness, accurate movement, and high resistance to flexing. Bottom line: tight, detailed music with improved mid-bass definition and punch. Laminated Polyester Soft Dome Tweeter These REV-exclusive soft-dome tweeters are made of a laminated polyester fiber and are encased in a specially designed anti-resonant sealed rear chamber. The tweeter chamber is notched behind the cone to decrease standing waves and to lower frequency response. This tweeter produces exceptionally smooth, detailed high-frequency sound. Rear Chamber Tweeter Enclosure REV speakers feature an exclusive rear chamber tweeter enclosure that we first used in our famed PRS speakers. It extends mid-range frequency for improved vocal imaging and staging. High-Quality Crossover The new built-in -12dB/Octave HPF and LPF crossover improves the transition from mid to high frequency, for a smoother mid-range to tweeter response. Audiophile-grade capacitors and inductors are used, and all components are encased in a clear acrylic cover for protection. Reduced Mounting Depth On all 2005 REV speaker models we reduced the mounting depth 4-5mm, making installs easier. This also means that many more vehicles will be perfect candidates for REV speakers. New Basket and Magnet Boot Our newly designed basket gives the REV-series speakers’ back sides a great new look, and its extra-thick stamped steel reduces ringing. The magnet boot serves two purposes: it dresses up the magnet, and it allowed us to reduce the mounting depth. Features Woofer Cone Material Dual Layer Kevlar(r) Brand Fiber and Rigilite IMPP Composite Cone Surround Butyl Rubber for Smoother Response Voice Coil Bobbin Glass-Imide Damper Conex Copper Ring OFC Copper Tweeter 1-1/8" Laminated Polyester Fiber Soft Dome with Magnetic Fluid and Neodymium Magnet Rear Chamber Tweeter Design Large Basket Design Full Depth Basket for Rich Bass Response Wave Guides Wave Guides For Dispersion Control Built-in Passive Crossover -12dB/Oct. LPF/HPF, with Acrylic Cover Speaker Grille New REV Spoke Grille Specifications Watts MAX. Music Power 350 Watts Watts Nominal Power Handling 80 Watts 22Hz ~ 32kHz Sensitivity (1W/1m) 91dB Ohm Rating 4 Mounting Depth 3-1/2" (89mm) Cut-out Dimensions 6" x 8-7/8" (153 x 225mm)