After 75 hours of burn-in on my Galion A20, here are my impressions.
The easiest way to put it is that it sounds just the way Thomas said it would in his Passion Project video—I am totally satisfied. Now some details.
I am a nearfield listener, with the speakers on either side of my computer monitor, and I sit about 3–4 feet from them. I noticed these:
* Very good detail across the board. I am using the word “detail” to encompass the audiophile descriptors like “revealing” and “resolution” as well as “detail.” Detail is precise and sharp but neither harsh nor biting. This was why I bought the A20. I could hear stuff on recordings I had not heard before; for example, the bass player muttering and breathing in “You Look Good To Me ” on “We Get Requests,” Oscar Peterson Trio.
* No peaks or valleys. No part of the audible spectrum is pushed too forward nor too backward. One could say it is neutral or flat, but those terms sell short the quality of sound. The treble is very clear and smooth or perhaps I could say it's pretty sounding. Combined with my REL subwoofer, I'm getting all the bass I want.
* Timbre is revealed. The sound (or “noise,” as poets might say) of voices and musical instruments strikes me as true to the real thing. Piano notes are nicely complex, plucked or fingered standing basses have what one bassist calls a nice “peanut butter” sound that comes from skin on old strings.
* Soundstage as good or better than my tube rig. Every now and then there is some sound I hear that I believe comes from outside or upstairs, and when I repeat that part of the recording or mute the sound, I can tell it's the recording and not something in the real world.
* Musicality. My other amplifier is a superbly pretty sounding and warm Decware tube amp—I describe it as “lush”—the A20 gets really close to it.
* Vocals. These are well defined and nuanced. I can hear the breathiness of Diana Krall as well as the emotive deep voices of Leonard Cohen and Johnny Cash (on “American IV: The Man Comes Around”). Vocals seem a particular strength of the A20.
* Surprises: Many of the recordings I listen to sound different to me because I can hear more of what's in the recording. Overall, the A20 sounds more “tubey” than I expected.
In case it's not clear: I love the A20; by far the best amplifier I've ever had (or heard in real life).