I went through the same change. First impression was the stereo soundstage or 3D imaging got wider. Is it halu? maybe or maybe not.. let me know what's your first impression
Everything fine, even at day 4. Perhaps the B100 Monos will last. I found, that the biggest difference is "Separation" between the instruments. And a very realistic Aura. So it sounds more like reality, than normal Hifi Stuff like the Fosi V3 which sounds a bit more "messy".
Interesting yesterday: The WiiM Pro Plus, driven with his own analog out and RCA Cinch into the B100 sounds better, simply more natural in my ear, than the WiiM Pro Plus digital out and then the SMSL D6s connected with XLR!!!
Perhaps just Imagination. But
AFTER my listening session I read about the Chips. The WiiM uses AKM 4493 something chips. The SMSL has ESS 9038 or so chips. Perhaps there is something with these chips?
Also I found out that between the Tidal Tracks there was a very very quiet click when using the SMSLD6s, but using ONLY the WiiM everything was perfect.
Roon user, a bit of equalisation, minus 6 dB, 4000 ms was my waiting Latency with my roon settings when Sample Frequencay Switches, because I wanted to give the devices every time of the world it needs to Sync for highest possible Quiality (I know its audiophile BS, but I am a bit supersticious...!) I ad 1000 ms Waiting latency in the programming of the Digital Out of the WiiM. Perhaps that made confusion between the gear.
Perhaps it is just something with the Clocks and the communication between the WiiM and the SMSL?
If one of my friends remarks something as "The WiiM is very good for its price" I now answer: "You´re talking absolute Bullshit, it is not good for its price, its overwhelmingly good compared to
ANY expensive components!!! It´s ultra Classy in an
absolute way!!!"
So I believe (and I know it sounds a bit schizophrenic (!)) that
a) sometimes 113.5 dB SINAD can sound better than 121.5 dB.
and
b) I
believe not every transparent DAC sounds exactly the same (which is a Subjectivist statement, I know....).
But
c) I also
guess, that there are many cases when a US$ 300 DAC / Streamer / Whatever can sound simply better than the one or other US$ 30,000 Component.
thw