New HCL cone material - This breakthrough material consists of two woven glass fiber layers with an epoxy-coated Nomex honeycomb core. This cone delivers on what is claimed by many and achieved by few. It is exceptionally stiff, yet lightweight. The benefits of which are increased efficiency, exceptional midrange clarity and lower distortion at high output levels.The P550c's tweeter features JBL's I-mount tweeter mounting system (patent no. 5,859,917) which allows for precise imaging and easy installation. Pure-titanium edge-driven dome tweeters - These are not commonly used miniature cone tweeters, but full edge-driven domes like those found in high end home audio loudspeakers. The benefits of this full edge-driven topology are reduced distortion at high output levels and superior integration with the mid/woofer.
