What should I choose??

...and don't forget the lava lamps.....a pair, one L, other R, sharing the same AC power source as the mono amps....

That way, the wax responds to the amperage 'draw'.....;)

(BTW....This is a tease.  No implied performance improvement will be rendered by this addition.  Your results may vary.  However, if this mod appeals, we're offering a Great Deal on them!  {Bitcoin Not Accepted}...)

....love the lamp, MC.  It's something I wouldn't expect of you....really. *G*

I can just about guarantee its the only lava lamp in the entire history of lava lamps to be used on a Black Diamond Racing Shelf. As a matter of fact, make that TWO Black Diamond Racing Shelfs, one (defunct) cartridge demagnetizer and one Teres Motor pod! Lol!
https://systems.audiogon.com/systems/8367#&gid=1&pid=9

Just another thought — I think we’ve all been big fans of our systems at one point are another until we hear the next big “oh” piece of equipment.  If you haven’t already, it might be a great time to go out and listen to some other speakers and amps just for reference if nothing else (and as someone else mentioned, if you can audition an amp at home so much the better), plus it’s just plain fun!  I worked for Magnolia and spent significant time listening to the D3 models, and I’ll just say it wouldn’t be a waste of time to at least hear the latest competition that’s out there — especially at the price point you’re looking at.  FWIW...

There's some good stuff out there for sure. But the truth is the better approach by far is to follow mahgister and me and tweak your system to the max. You can do it cheap with lots of home brew like mahgister or you can do it less cheap with different things the way I have. Either way you get way more for your audiophile dollar, and way more for your ears for that matter, than following the usual component upgrade path. It. Is. No. Contest.