> Range 1 - 44.1K/48K > Range 2) 88.2K/96K > > Jack can switch between either rate in each range, but for whatever > reason it cannot switch between the two ranges themselves. Aha, this is precicely the behaviour I was looking for _across_ the two ranges! As you say, sampling rates change happily within each range, just not to/from rates in the other. In any case, I'm relieved to know that it's not my setup (things are working remarkably well now). I may contact the developer (if only to thank him) and inquire about this, it seems to me that ALSA or JACK should be able to inform HDSPconf of a rate change regardless of speed/range. It is particularily painful at the command line where I'm jumping back and forth between rates all the time meaning HDSPconf is always open ;) Kevin