Similar to member chosenplay earlier in this thread, I am also using DEQX & Open Baffle speakers ’though in my case two processors. (HDP-5 - 3-way OBs as master & HDP-3 slave with two subs).
I am 62 y old, a vinyl listener since mid 70s & was extremely cynical about using DSP with an analogue source until I actually heard it in someone else’s system!
I then researched & auditioned/trialled numerous variations including Dirac, Mini DSP, Behringer, Acourate, even Linn Exakt in recent years but for me. DEQX provides by far the most satisfying results in spite of high cost.
The first time I set a correctly time and phase aligned crossover with corrected, time coherent speakers I literally swore out loud at the clarity, transparency, cleanness and sheer musicality of what I was listening to (this was with Shaninian Obelisks & a M&K sub that I had owned for years and knew the sound profile inside-out).
The phrase ’game changer didn’t come remotely close! (that was seven years ago & I progressed a long way since then with a setup that since early 2017 is as near ’perfect’ as I could want).
Any shortcomings that may (or must?) be present in terms of transparency are buried so deep in what I hear that the positives about absolute time/phase coherence (at EVERY frequency in the case of DEQX) completely overrule the negatives I never really appreciated in most purely passive setups that I had owned or listened to.
Any sceptics reading this - please keep an open mind before passing judgement until you hear a properly configured DSP setup
