User Feedback for Sophia Electric™ S.E.T. 45/n - By Rob, The Netherland (October 2003)

Recently I built myself a SE-amplifier, using the "best" components available (C-core 0.05mm laminated for OPT, interstage and supplychokes by AE-Europe and BlackGate NH capacitors in super E-cap for B+ and kathode-circuitry). The powertube was the UX245 by RCA/Cunningham, driver the Philips 4606 (a WE101d equivalent/replacement). The Sophia Electric S.E.T. 45/n features a nice ST-shape with punched plate (no mesh - in my opinion). The 45/n settled at exact the same adjustment and is as quiet as the UX245 which is ac-heated (less then 0.2mV). Power output is around 2.5Watts (!) at 325V B+ and -55V bias (auto-bias), same as the UX245. At first the 45/n lacked some bass but after a couple days bass came in. This tube really sounds very open and detailed with a wide soundstage, in my opinion even better than the original... Where the original has a tendency to sound a little "romantic", the 45/n is more precise and open but with that typical '45-character... and that's what I like about this tube!! I believe this tube is THE substitute for the "good old 45's"!!!
DHTRob, the Netherlands (rob@dhtrob.com)
www.dhtrob.com