Pass Labs makes extraordinary amps, no doubt. That said, in order to benefit from the full spectrum of Pass Labs power and ingenuity, you really need to have the purchasing power to stick with their higher end gear. I'm not too familiar with your speakers, but what I can tell you is that adding subwoofers can dramatically spacial presentation and timing. I agree that you would serve yourself to do a scorched earth search through research and if possible, auditioning. FYI I purchased a pair of new Focal 1008 BE's for half price ($3k) and a Hegel H90 ($2k). I did not audition them. I just "knew" from my extensive study and auditioning other brands, everything from Dynaudio Special to Devore Gibbons and Line Magnetic to Naim that this pairing would work well. Indeed, the warmth of the Hegel balances the astonishing highs of the Beryllium tweeter while the Sound Engine 2 drives the bass to jaw dropping levels for a "bookshelf" speaker. At the end of the day, have fun, and just a friendly reminder, it's okay to go a little nuts with this "hobby". ✌🏽🎼