One difference that I forgot to mention is with the VP100, I preferred to listen to music in Stereo. With the VP150, I preferred to listen to music in 3.1 with the center playing.

It could also be that with a 5.1 or a 7.1 setup differences in centers appear much smaller than with a 3.1 setup. Dealing with 3.1, the center channel differences are very noticeable, at least in my room with my setup.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing