I ended up ordering the Darts. To be frank I liked them all. Unfortunately no dealer where I live loans equip to audition at home so all of my impressions are by deduction. I have chronicled this on my system thread. In any case, Gryphon had a very fullsome bass. Best of the lot. I didn't know my speakers (the dealer happened to have the same set) could do that! Driving and perhaps a bit of a mid bass bump but very pleasing indeed. Everything else was very good too but top air a tiny bit lacking and a sense of delicacy when required was a not as good as the other two IMO. The ASR had that air thing going to the nth degree and there was a sense of you being transported to there as opposed to muscians being transported to your room. Bass may have been a tad light. Transparent and extremely quiet.
Dart: what can one say: you may have heard many say its the the perfect match btwn tubes and solid state. yes and no. It had a sweetness of tone, remarkable sound stage (ASR too), but when needed bass slammed. very fast and you could hang on to the decays (can't wait to try it with my EMM gear and play some SACDs) in the end, it just made me listen to the music. It may not be the most neutral of all (and indeed the term neutral is used so much that I think its starting to lose its meaning) but I fell in love with it.
But all three were exceptional. I think it comes down to personal tastes. Dart did it for me but you may differ.
Dart: what can one say: you may have heard many say its the the perfect match btwn tubes and solid state. yes and no. It had a sweetness of tone, remarkable sound stage (ASR too), but when needed bass slammed. very fast and you could hang on to the decays (can't wait to try it with my EMM gear and play some SACDs) in the end, it just made me listen to the music. It may not be the most neutral of all (and indeed the term neutral is used so much that I think its starting to lose its meaning) but I fell in love with it.
But all three were exceptional. I think it comes down to personal tastes. Dart did it for me but you may differ.