Of course, if it truly improves the SQ in any way and does a better job than what we can do manually, then even I and
@TLS Guy would use RC.
If Yamaha were to join the gang and offer DL in their AVR or AVP, I would try it AGAIN. And use whichever sounds best to me.
That’s the motto - try everything and use what’s best.
But if I were to make an educated guess based on experience, I would say that DL (like most RC) will probably improve the BASS, but not above 400Hz.
Bottom, I hope Denon/Marantz do in fact offer DL to all models from X3800 and up. And I hope Yamaha follows just like they finally did with Auro3D.
Whether we use it or not isn’t the point. Giving everyone the option is always good.