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 P660c’s tweeter features JBL’s I-mount tweeter mounting system (patent no. 5,859,917) which allows for…