Check out this video if you haven't seen it.
This is when Jay visited Danny Richie from GR Research's house in Texas.
He was blown away by $5500 open baffle towers running off $400 (each) battery powered mono blocks and $3500 open baffle servo controlled 3x12" subs also powered by batteries. In front of those were a battery powered modified Mac mini and a custom built DAC and a tube pre amp running off,,, you guessed it, battery power.
Could this move to Texas been motivated by this experience???
You make the call.