You can except this or ignore what I say - however >>>
I have owned the B10 and it is on the coarse/grainy, harsh/edgy side
of sound, and the bass is lacking. They do have a nice central image.
They also have a weak midrange. The Cambridge is more clean > and
more detailed with good lows, mids and highs.
Did you say the Cambridge will get beaten up.

The Stock Cambridge
measures good compared to a lot of speakers, and is not even beaten
up buy the Behringer 2031p. The Cambridge has a nice coherent sound
and even Denns Murphy liked the stock version.
Here is a subjective review - and no, I did not write this one.

*edited out URL, I'm not 5 posts yet :/*
Now on a side note - I can play them loud in a 20 X 30 open room.