03-12-11: SirotsetaYes, that was mentioned in the original post.
I believe Sakahara is looking for a "tube" DAC.
However, he stated on 3/11/11:
03-11-11: SakaharaWhich indicates he has either changed his mind about restricting his choices to tube DACs, since the APL DAC-S is solid state, or he didn't realize the APL DAC is solid state. If it's the former, then the Berkeley Audio Alpha is a valid option to the APL DAC-S.
Possible solutions;
New:
Lampizator v3 Level 3
APL DAC-S (stretching budget @ $4950)