Yes Fred, I have switched back and forth and the PB13 adds a bit more to the low end, IMO, compared to the M80s set full range and no sub. It could have to do more with my limited placement abilities for the M80s, but like I said the m80s are very good on their own, just not as good as with the PB13 in my room, it might be different in another room. It could also be I like the ability to run the sub a little hot. I should try running the bass control 2 db hot and then go 2.0 to see if I like it as much.
