I would have too disagree with that,the Valentina has a 3 position switch to select -3 ,0, +3 db on the 2 woofers.I used mine in a 11x12 bedroom 2nd system for a month with very good results.If I would have the monitor version I probably would have added a small sub.
Offcourse both versions are'nt dipoles so room position is a lot easier.
Just my experiance and opinion.
Kenny.