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what,which dac does tube at 80 ohms?

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In Reply to: Just want to add... posted by RioTubes on October 10, 2006 at 16:34:10:

Hi have been looking for dacs with less than 100 ohms and tube with that chip sounds sweet
cheers

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Tube-lover's twin TDA1541 V2 on Diyaudio - RioTubes 11:47:54 10/11/06 (2)
I think he is onto version 3...a different output stage. But if he still has the DAC board, you could build your own tube buffer. Its a 6dj8 SRPP rectified by EZ80. If the IV resistor value on the Dac board is set at 47 Ohm, you get 2.2V which is sufficient to drive my Welbornes that have 1.5v sensitivity. The thing is, the tda1541 likes to work into zero ohms..so by lowering the IV resistor to say 22 ohm the voltage drops to less than 1v :(
This is why I may look at a 6c45 stage...I can live with higher Zout.
- thanks saved some hair? - merdy 07:31:39 10/12/06 (1)
  has not been an easy one
  m
  - LOL! - RioTubes 10:25:59 10/12/06 (0)
    No it has not been an easy one....especially for a first time board level project. Cardinal Rule #8: Don't attempt a first build when the builder doesn't speak Chinese and the designer doesn't speak English...and there are no instructions. Aside from the build frustration, it's a beautiful dac.

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