I am a new DartZeel owner, adding the 468s and matching pre (Mk II) just this afternoon to the system. I’ve read virtually every thread on this forum and had worked myself into a frenzy with questions, etc., but once I turned them on, all was well and the questions are no longer as pressing. Between that and the Horizon I added a couple of weeks ago, I am blown away. Color me a happy camper and thanks for all of the wisdom you all have shared on here over the last several years.