Hi Paul,This was the manufactures response to your suggestion Al:
“The DAC has hot outputs that may be too much for your integrated. I would suggest a level of 55 and if that is still too much then go RCA at that level.”
I tried RCA and what I got was a lower volume and a little less detail (lackluster sound ) than with balanced connections. Definitely a little brighter, but in a nice sort of way. I turned the volume down to 55 (from 65) as the manufacturer suggested and have left it at that for now. Any comments?
I would also ask W4S how much sonic degradation they would expect, if any, when the DAC is asked to drive a balanced load impedance of 1K.
If their answer is that audibly significant degradation is likely to result then I would continue to use RCA interconnections, in which case the DAC is presented with a vastly more benign 50K load impedance, as I had indicated. And I would look elsewhere for the cause of the lackluster sound quality you referred to. It’s usually best, IMO, to try to determine and address the root cause of an issue rather than compensating for it by introducing a different issue.
On the other hand, if they feel that 1K would be no problem for the particular DAC, perhaps it would be best to return to the balanced cables and turn the DAC’s volume control down a bit further.
Of course, another variable in all of this is the relative sonic quality of the balanced vs. unbalanced interface circuits of the two components, which can probably be determined only by listening (if a 1K load is suitable for the DAC).
Good luck. Regards,
-- Al