FreDJ

I think I understand what you mean. Just to mention that I tried this with two different Headphone amps and was surprised to find that...

I'm glad that we can all share with and learn from each other here. Yes, series blocking caps may be a solution to try. Many older...

"When all devices are connected, please measure the DC and AC voltage (3 digits before the dot) from the ground of the RCA plug of the...

Would be great to have schematics for these units. That the scratchy pot issue seems to disappear over time makes me think of a...

Thanks for the additional advice. Just earlier I went back to explore/measure further. (I had discontinued using the NAD/SU-1...

I've not yet checked for DC (gain-dependent) at the headphone output. Indeed that would be a concern, as you are aware. I'm still...

Have you measured the SU-1 DAC for any DC output voltage at the output jacks? As an electrical engineer I can explain why DC output...

It's not a question of not liking answers. I wanted to determine if DC voltage at the outputs is normal or if I received a defective unit.

I tested with another Schiit headphone amp (different circuit design) and the same happens, yes, at idle. My other source is a Wiim...

After good reviews and fine measurements, purchasing an SMSL SU-1 was practically a no-brainer. I'm powering it with a linear 5VDC 1A...