I have a lot of sonos products. I've been using the play bar, sub, and play 1 surrounds for many years. I upgraded the play bar for the arc. I find that the dialog is harder to hear. I tried every sound setting combination the app has to no avail. I kept turning the volume up to hear speech, and down when the other sounds got too loud. I hated the volume up and down game so I went back to my play bar and the dialog is so much better. Also, I don't own any apple products so don't recommend calibration., not going to happen. Sonos please fix this in a firmware update. If not I'll going to have to get a different soundbar with HDMI connections that has good dialog performance. I researched best dialog bars on rtings and the sonos arc is very low on the list, the play bar is much higher. Why does the dialog suffer on the arc??