It's been a long time... I finally got a NAD C3050LE after attended a demo with Dirac. That convinced me that the future lies in active room correction, in Class D and, why not, even in switching power supplies. Unable to correct the room's modal resonances and having limited options with some early reflections, I always had to resort to some correction, first manually, using both Rew and HouseCurve with WiiM's PEQ, then with WiiM automatic correction also, obtaining overall acceptable results, thanks also to a decent RT60. But it was when I switched to Dirac that the phase correction between speakers and subwoofer and some modal resonances finally gave me that pleasant sensation of sound I had ages ago in well-designed mixing rooms and that I had given up on replicating at home. Even the choice of KEF LS50 Meta coaxial drivers, to reduce parallax errors on the more lateral emissions, was intended to reduce the effects of early reflections. Either you build a room from the foundations, or you have to settle. In the near future, I will see what possible solution is available to adopt Dirac ART and possibly a double subwoofer.