@brbrock The 'Revelation Raven tube preamp by Spatial Audio', has a substantial Pedigree, and is also the work of individuals who have taken the Design Intent and selections made for the circuitry that is beyond usually discovered in the main stream manufacture arena.
Valve Circuit Enthusiasts are extremely fortunate to have this model as competitively priced option.
I would love the chance to be seated om front of one.
For the Short List it is well worthwhile to attempt to have a experience of one in use.