If you have a powered sub, you should also change your other speakers to "small" as well. I know that it sounds contradictory since you have nice sized M60 speakers, but it will yield better results as well and I believe that it is also the THX recommended settings for all bit the most massive speakers.

Glad to hear that the VP150 is sounding better.
Oh, and welcome to the forums! smile

Farewell - June 4, 2020