Okay today the Burson Soloist arrived, and I did some listening comparisons with the DACmini to see how the LCD3 sound changed.
Already very pleased with the DACmini (except for the issue of the right channel cutting out at low volume), I didn't expect much improvement. Holy cow. The Soloist, even on the medium output setting, produces some tight @$$ bass. Just listening to Abraham Laboriel thump the living funk out of his bass on Al Jarreau's "Look to the Rainbow" album. Sat in the floor in a daze. My wife walked in like, "what is wrong with you? how long have you been sitting there?" Then it hit me that the entire album was over and I'd been completely sucked in. Definitely a first for me. So, let's just sum up the Soloist+LCD3 combination as incredibly involving with incredibly tight and extended bass.
I wonder if the high setting is even needed. I don't hear much difference yet, but letting it break in.
Audio nirvana has definitely been achieved here...