Quite a bit later it would seem, still better than never.
I had been really enjoying the Heschl with the ML2 Ltds when I decided to try out the usb input and I noticed several things. All of which make sense in retrospect but my foresight a month ago was not working so well.
In Terry's system the Heschl's coax input was a touch on the edgy side, it was certainly listenable (I liked it quite a lot in fact) and still beat out the droplet in the opinion of both of us and we probably would have stopped there (and still been happy) if Rod hadn't pushed us to try the usb input. Well the usb input opened up the soundstage, dropped away the noise floor and smoothed out the presentation to a point that I would simply not have believed possible if I hadn't heard it for myself. To put it simply the difference was very large indeed and I know Terry had some "issues" with returning to listening to the coax input after having heard the usb performance.
Once again in my system I was quite happy with the performance of the Heschl using the coax input and I don't really have a usb source that I can dedicate to full time duty so I was successfully putting off trying the usb input for quite some time and sticking with the coax. But I had to try the usb eventually, and I did, and the difference wasn't very big at all!
In fact, in my system I prefer the coax.
How can that be you ask?
Well Terry's VA speakers have a lot more treble energy that my Lenehan speakers do, loosely speaking they are a bit brighter and a little harder, (or, if you prefer, my Lenehans are a bit smoother and a bit darker in presentation) and that extra treble energy was what made all the difference. The "usb effect" either removed it or somehow refocused it and that caused the "very large indeed" effect heard at Terry's place. The Lenehans don't have anywhere near that level of treble energy evident, they are pretty smooth already, so changing over to the usb input smoothed them over a bit more (an effect that was not needed in my opinion) and since I like a bit of energy and edge to some of my music I ended up preferring the coax to the usb. Very convenient since I didn't really want to have to convert/set up a usb source in the first place.
I didn't get the spacious sound stage opening effect that Terry did, and that's a bit disappointing I will admit, but it's something I will just have to live with. It may well be the small room I'm forced to deal with, if so then things may change for the better in a few weeks when I move in to my new flat. My new lounge will be twice the size of the old one, and I'll be free to treat the place as much as I want since I'll own the walls so if I want to punch holes in them and hang icicle foam from them then I damn well will.
I guess that means there will be a new Addicts Guide thread starting up too. Eventually, when I recover from the move.