I have a pair of the original copper Bent/S&B TX-103s which I had used prior to getting my K&K phono stage from Kevin. The K&K uses the new Lundahl LL1931 SUT, and can be wired for 1:8 or 1:12, kind of "in between" the standard 1:10. The Bent can be wired for 1:5, 1:10 or 1:20. Running direct into the K&K's MC input vs. into the MM input with the Bent's in line is quite illuminating. I'd say the Bent's sound excellent, perhaps just a bit of mid-bass bloom, and just a bit veiled on the top-end, but this may be the byproduct of having another set of connectors in the chain (which has an easily audible impact). The Lundahls in the K&K are a bit more immediate sounding, and have a real sense of cohesiveness throughout the entire frequency range, with a bigger sound than the Bent SUTs. I have to go back and look again, but I think Kevin loads the primary on the Lundahl, where on the Bent the secondary is loaded. Two very different ways to approach the probelm, and one that I'd like to listen more closely to. Good listening.
-Richard