Hi John, Well its been more than a weekend, but that's just not enough time to evaluate changes and to even get things set up properly. I very much enjoy the MUs (they are beautifully built and a joy to look at and handle, vey nice indeed), the Hagerman Trumpet, shelter 901 combinatin works very well together. I have for now settled on 36 ohm loading. I now need to get a feel for it there, and I am pretty sure this is close if not correct for my system. I was having a difficult time getting system synergy/volume matching set in the system but now it is very close. The system is very quiet and dynamic with well defined and articulate bass with a nice smooth top end.
I am currently using a resistor, ladder type, passive preamp from goldpoint. in my own diy case. I have been reading with interest the TVC passive preamps that you offer. I think the TAP is the cats meow but it is out of my price range. I only need one input and output, dual mono, no switching , RCA in and out. And I do rather like the digital read out volume setting. I would like to do it as a DIY to keep the cost down, unless you have a ready made unit or kit like this. I would like to know your thoughts on my different options for this and any other things I need to be aware of or info I may be able to read to help me in my decision.