I have owned & enjoyed successive generation Herron Preamps - I started with the VTSP 3a Ro1, then the Ro3, and now the 360/ESP ......I have actually been lucky enough to have the Ro1 & Ro3 simultaneously and was able to do an AB comparison, and later an Ro3 & 360-ESP as well...cant say enough nice things about them. I saw a bigger difference between the Ro3 and ESP than the Ro1 vs Ro3.
I can’t wait to get the REF upgrade.
BTW I enjoyed the youtube interview a lot! He is able to bridge the science and art of electrical engineering and a pair of good ears for the enjoyment of music.
I wonder if Herron will be represented at Axpona this year...looking forward to it.