I know this is an old post, but I just was gifted a pair of Icon Lumens. Here's the info on them, direct from David Fokos:
(The Lumen) features a 1” aluminum dome tweeter from SEAS (Norway), and a 6.5” polypropylene woofer from Vifa (Denmark). The crossover uses polypropylene capacitors with polystyrene bypass caps. Internal wiring is from Audioquest. The gold terminals on the back are from Tiffany. The crossovers are 2nd-order filters around 1250 Hz.
Posting just in case someone else come looking.