DESC: The Pioneer universal speaker series is the widest range of speakers in the industry, designed for convenient installation in all types of car. Available in 5 separate series to meet different sonic preferences and budgets, each offers an exceptional combination of high technology, quality and high value for money. ??These speakers deliver 150-Watts Maximum Music Power (50 Watts Nominal). They feature 4" IMPP (Injection Molded Polypropylene) Rigilite Composite Cone (Gold) for smoother response with deeper bass, Butyl Rubber for smoother response, Latex Damper for enhanced linear bass response, 1" Aromatic Polyamide Soft Dome Tweeter with Magnetic Fluid for superb sound with improved reliability, Ultra-Slim Neodymium Magnet (Tweeter) and built-in Passive Crossover (-6dB/Oct. LPF, -12dB/Oct. HPF).