They sound too different from one another to anyone but yourself to make a judgement call to what you prefer. The JBL 4367 are neutral, and have far less horn sound signature then any Klipsch speaker ever made. They are also a lot different sounding then L100. I think based on the fact you already have and enjoy your Klipschorns you should just keep those. There is no benefit ordering a new production Klipschorn which, afaik, are different animals from the older models, and use different folded enclosure to facilitate placement away from walls.
