6-1/2" 2-Way Polyglass Series Component System Power Handling: Peak: 280 watts per set / 140 watts each side RMS: 140 watts per set / 70 watts each Polyglass cone woofer Butyl rubber surround 1-3/4" Aluminum/Magnesium inverted dome tweeter 80% ABS/20% Fiberglass basket Crossover with 3-level tweeter control 4 ohms impedance 2-Layer Kapton voice coil former Top-mount depth: 2-9/16" Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.