In Reply to: what,which dac does tube at 80 ohms? posted by merdy on October 11, 2006 at 08:04:22:
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.
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Follow Ups
- Tube-lover's twin TDA1541 V2 on Diyaudio - RioTubes 11:47:54 10/11/06 (2)
- thanks saved some hair? - merdy 07:31:39 10/12/06 (1)
- LOL! - RioTubes 10:25:59 10/12/06 (0)