TS-D1720C Features Dual-Layer IMX (Injection Molded Matrix) Aramid/Basalt Fiber Composite Cone
To create new D-Series speakers, Pioneer developed the industry's first basalt fiber made from natural rock interwoven with aramid fiber. Used in the surface layer, this Aramid/Basalt Fiber material is highly rigid and better absorbent, enhancing stability and maintaining integrity throughout a wide temperature range. Rear Chamber Tweeter Enclosure
D-Series 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 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. Smooth Off-Axis Response
The V-shaped tweeter diaphragm and arching wave guides control sound dispersion to make the sound stage wider in your vehicle, and ensure passengers and driver alike enjoy the same great sound. Fits 6"x8" Applications
The included 6"x8" adapter allows this component set to also be used in many Ford and Mazda vehicles that feature a 6"x8" speaker application size. | 
