There is still a drop of SPLs when listening to the VP180 but less noticeable than with the VP150. As long as you'll stich with a horizontal array for a center, you'll get this effect more or less no matter the brand (RC-64 included). The only way to get away with that is going with a vertical center.
What I noticed that the VP180 really improved is more natural vocals, clearer dialog, fuller sound, a better blend with my M80s and better bass guitar sound during concerts.


Bruno
M80s/VP180/QS8s/EP600/AVR-890
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"The problem is choice..."