Transparent Audio

Between MM2 and Gen 5, there was supposedly a 1.5 level jump

Do you know anything about from XL to mm2?

I replaced Ultra XL with Super MM2, and found both the speaker cable and the XLR interconnects to be a significant improvement.  For all their upgrades Transparent has said it moves up 1.5 levels, so Super MM (also known as MM1) should even be better than Ultra XL

though I eventually found the Cerious Graphene to sound better than both, and it's less expensive...

Went from Ultra XL to Reference MM2 just below the Reference xl and the jump in sound was very noticeable(speaker cables)