Hi yacmed

I have a pair of M3Tis and they do indeed accommodate banana plubs, spades, or bare wire. There's no reason not to place M3s in the corner as far as I know, although it may enhance the bass a bit. You should leave some room between the back of the M3s and the wall since these speakers are rear ported. Axiom reports that the cost of parts from US suppliers has increased, I dunno. They are terrific speakers, clearly as the price increases the price/quality ratio degrades.

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.