Can't comment specifically on the B1, but have to say I'm very impressed with Studio Projects gear in general. I'm a guy working with a limited budget, but also very critical about getting good results - a tough combination, right? Still I recently puchased both an SP C1 mic and a VTB1 pre, and am absolutely thrilled with the results I'm getting on my vocals with that combo. To me, this gear sounds first rate, certainly way better than I would have expected in this price range. I'm now anxiously waiting the arrival of a second VTB1 and a pair of SP C4 mics to add to my collection, (I believe this will be a good combination for acoustic guitar). For a total of around 200 bucks, I see no way you could be going wrong by getting a B1 and a VTB1.