Yeah, it's weird how once your ear gets accustomed to a new speaker that you really like and you go back to your previous favorite how different it can sound. When I was plugging in the Vento 9.2, I thought I may want to leave them plugged in for awhile. The Vento mid-bass kick was still strong but it could not compare at all with the clarity and definition of the BMR.
The Vento all of a sudden sounded dull, like a sheet was over the speaker. The absolute clarity I was accustomed to with the BMR in the last month was gone. I never would have thought of Vento 9.2 like this before. Did the BMR break in or was it just my ears? I can't be sure, but I'm loving the BMR sound now. In my office the speakers are setup in an intimate setting. Only about 9 feet away from my desk. While the BMR takes more power to drive they are so much more open and crystal clear.
With the Vento it was the mid-bass punch that I loved but the highs are more shimmery and less defined (by a lot). Once you get use to the close up crystal clarity of the BMR it's impossible to go back.
I should probably shut up right now as I may want to sell my Vento 9.2's. lol
I would strongly suggest you not borrow a friends BMR's for a month.