So I've been evaluating the Burson V5i-D in my xDuoo XD-05.
What exactly are the strengths of V5i-D vs LME49720?
For the first, soundstage is amazing. It's wide, well separated and precise. Though depth is not as resolved as on 49720.
Has a significant bass thump and mids are forward and probably slightly, very slightly upped. Highs are controlled. Extension is present but in a controlled manner so as to not bother the sensitive people but still be noticeable to the critical listeners.
This creates an effect like listening to the instruments in a cosy studio from a distance whereas the LME49720 feels like listening to instruments in a concert/opera hall from the stage (pretty close). Now you can visualise exactly the difference in soundstage.
Key features of sound is its thick. 49720 is very lean sounding. Lean and quick. The V5i-D is thick smooth and still pretty damn detailed sounding. Detail perception is better on V5i-D vs 49720 owing to its soundstage and better mid bass/lower mid presence.
Previously I thought V5i-D doesn't reproduce instruments as naturally and accurately. Now when I visualise the soundstage in a way described above, I think it's natural but in a different way. Same instrument sounds different when played in a opera hall vs when played in a studio. This opamp is like a good spacious studio. Very dark background. Whereas 49720 is like an opera hall with you close to the stage or on the stage. Background is filled with instruments, micro details like artist breathing, hands moving over strings, etc.
TL;DR
V5i-D is very very good. LME49720 has destroyed my listening preference, but spending some time with V5i-D I learnt how sound can be reproduced in a different way without sacrificing natural tonality.
V5i-D does have a bit of noticeable sibilance. Not harsh, not overbearing but sibilant nonetheless.
For me though, I still prefer LME49720 anyday. It has better extension on either ends. It sounds more acoustic than V5i-D. Like it's lean, nimble, swift. Also, soundstage depth and then resolution of depth is better with the LME49720.
