Some people don't believe in "break-in" but I do. Let's call it seasoning.
Last night I was amazed hearing the MOST LUCID channel separation ever heard in my home listening to FLAC files. (My Tab 10s get some credit, also. Kick those babies six feet apart and you are in business.)
PRAT, I couldn't sit still listening to music. There is something there, there.
The sound stage is very deep and a lot of voices seem to linger at the back.
The sound is "fleshed out" and makes the Tabbies sound much larger than they are. In fact, the bass is so muscular I'm hearing lower notes than ever before and having to reduce volume levels so's not overdrive. (Those 4.33" mid-woofs go lower than a regular LS 3/5a but not much lower.)
So far, this is the most "tubey" solid-state amp I've heard. (Far more tubey than my Decware SE84C!) All the edges have been buffed so all the notes are smooth.
I do have some concerns, though. The voices at the back of the soundstage can sound foggy. Sometimes words can sound burred, meaning syllables or just one word. Syllabance and the bite of a trumpet or symbol are gone. This is missed. There is also an occasional "smear" upfront and in the foreground. Puzzling.
I'm using a "seasoned" Freya S preamp without tone controls at the moment. And so far, I've been pleased overall. I appreciate a little sizzle at the top (how guache, they say!) and I will see if the imaging and PRAT overcome that. This is a music lover's amp, for sure. Next up will be my Zu Souls. These speakers do need some amp magic and I haven't found it yet. (Although I hate to move the Tabbies for fear of losing the magic imaging.)
Is there much hope for the upper treble?