I spent another round with my Acme 112 FR and can add some additional comments. My test bed included my Acoustic Image Clarus+ and modified Rob Allen MB-2 (with Solid 4 mag pickup only, see avatar). I apologize for any repeats or misquotes from previous posts.
I find the Acme to be a VERY clear sounding cab. As such, it's a bit unforgiving of sloppy play. Proper technique is needed, especially when playing chords or double-stops, which I do a lot. It's starting to open up a bit now and as a result sounds a tad warmer than out of the box. Taming and/or proper use of the high end is the biggest challenge so far. However, goosing the treble is not unpleasant, it just adds to the clarity factor (see "technique" above

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After playing with it for an hour or so, I broke my rule of giving the Acme extended play before again comparing to the Thunderchild. I plugged in the Thunderchild. I couldn't help it.
I was again struck by the dramatic difference, practically on the first note. By comparison, the TC112 sounded mid-present, somewhat muted, and more mellow sounding. I attribute it to its very even sound palette and Duke's overall design goal. After playing the Acme, the Thunderchild felt a bit more musical, which I believe Ken commented on earlier? It was also more forgiving on technique, again, especially when employing double-stops and chords.
I then returned to the Acme. I backed off the treble a bit more and got a bit closer to the musical quality of the TC112, though it was still astoundingly clear. What I've ignored until now are comments on the Acme low end. Stunning! For fun, I maxed out the bass on the Clarus .... gut wrenching. It's hard to be a bass guitarist and not be moved (in more ways than one) by the Acme low end.
Before retiring for the evening I experimented with the built-in effects on the Clarus+. Chorus, reverb, plate, etc. were all very dramatic with the Acme, more so than I experienced with the Thunderchild. I attribute it to the bigger box, giving the effects an added richness, IMO.
At least one more round of tests to go before I make my final decision. I mentioned in an earlier post that I will keep only one 112 and one 115. So I will either return the Acme or sell the TC112. I'm not off the fence yet, but I'm strongly leaning toward selling the TC112. I wouldn't do this if I didn't have a Thunderchild 115 in the works. Still, it's hard to let go of a cab so beautifully designed and packaged as the TC112.
All comments are strictly my opinions and observations. Others may and will likely have their own views, perhaps quite different than mine.