Okay so, update on the VTV.
The horrible midrange seems to have mostly solved itself. That's good. There is still a smearing / lack of resolution when things get busy. Midrange sounds -- instruments, voices -- still don't sound really convincing. Another troublesome aspect is that I don't seem particularly interested in long listening sessions. Lack of engagement. This could be a sign of a general lack of euphony which is the kiss of death of anything in my system.
Imaging and soundstage has improved since the early days, but it's still not really convincing.
Bass however has improved to the point that I'd usually associate with class D. Dynamics have also improved to a level I'd call satisfactory.
Next step I think I'll contact VTV and ask about what changes the input board and buffer options may have. Perhaps a double power supply model will help. If some combination can help midrange I may try that.
The horrible midrange seems to have mostly solved itself. That's good. There is still a smearing / lack of resolution when things get busy. Midrange sounds -- instruments, voices -- still don't sound really convincing. Another troublesome aspect is that I don't seem particularly interested in long listening sessions. Lack of engagement. This could be a sign of a general lack of euphony which is the kiss of death of anything in my system.
Imaging and soundstage has improved since the early days, but it's still not really convincing.
Bass however has improved to the point that I'd usually associate with class D. Dynamics have also improved to a level I'd call satisfactory.
Next step I think I'll contact VTV and ask about what changes the input board and buffer options may have. Perhaps a double power supply model will help. If some combination can help midrange I may try that.