Sorry for drudging up an old thread, but I was wondering if anyone knows what the Vrms for the DAC 60 is?
I am sketching out the gain structure of my system and wanted to know. I haven't measured mine yet and wondered if anyone else has. I have to finish up some other larger DIY projects, but I have lots of ideas for modding the DAC-60. I was even thinking of transplanting a duet receiver inside the DAC-60 case and moving the transformers (and probably the first part of each PSU) to an external case. Then one can bypass the SPDIF interface between the duet rcvr and the DAC60. Then I am thinking of redesigning the analog output stage. It seems that not much creativity was used in the 6922 stage. Its a bog standard SRPP. I was thinking of doing a CCS (ala Pimm's SBCCS) loaded (triode strapped) D3A and taking the output from the CCS's mu output. Wouldn't cause too much mechanical reworking. The D3A would have >2.5 times the gain so the I/V resistor could be more than halved which would take a great deal of stress off the DAC, putting it in its more linear operating region. And despite having a great deal more gain, the D3A triode strapped has less miller capacitance then the 6922. And the Zout of the CCS-mu is 500ohms which is less than the SRPP's out, if I am not mistaken. It also has increased drive current for cables, etc. Of course, reworking of the HT PSU goes without saying. -- joshk ------------------------------------------------------------------------ joshk's Profile: http://forums.slimdevices.com/member.php?userid=1386 View this thread: http://forums.slimdevices.com/showthread.php?t=20789 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
