I have heard the lamps come in for fixes a lot. (I know a pro-fixer.) I'd get a Tubadour any day.
Audio Mirror Tubadour Vs. Lampizator
I have been looking at some tube DAC's and would like to know if anyone has had the chance to listen to both of these DAC's the Tubadour IV or V compared to any of the Lampizator DAC's.