I've owned the BT250v for about a month now, and I've not ever had an issues with volume at all. There are volume controls on the unit, as well as being able to control it on the BB itself. Perhaps working them both to be able to find the best level for you would work...?
"For pretty things that serve no use, the true art finds its tether.
To those who know illumination comes wickless in the nether."