Well the hunt continues. I’ve auditioned a 299c about a month ago and for some reason it didn’t wow me. Could have been the set-up or I just plain did not like it or it wasn’t functioning properly, not sure. So now I found a 299b with 7189 OP tubes. Some say that are a bit sweeter sounding. What’s the general consensus here about the preference or differences in sonics. I would like actual comparisons from owners that have had or compared both. Will be paired with Klipschorns. Thanks.