tube DAC noise


....recently tried the Black Ice DAC.  Really enjoyed the sound only the tube noise was noticeable on quiet passages.  Do all tube dacs have this ?
joe2060
...thanks greatly for the experience y'all.  I tried different tubes, all from upscale, and was never able to rid the unit of noise so I sold it off.  Recently been considering a couple different dacs and some are tube based and have naturally been hesitant to try.  Will have to keep experimenting with an open mind.....
Border Patrol uses one tube as a rectifier. No tubes in the output stage. Good reviews and owned by quite a few members.