Hello,

finally I managed to start my preamp-project, ist winter now, diy-time.

I am alost finished now. But my wm8804-opus-ballsie combi produces sound with horrible distortion. One channel a little louder than the other but both are distorting the same way.

What I did right now:

- Checked the ballsie, its PS and grounding. Works perfectly with other sources.
- Tried the spdif source with another DAC.
- Increased the way between the lcdps and the dac (were close to each other.
- Did a complete rewire of all the modules, incl. a external Starground for GA, GD and the ground of the Ballsie
- Checked the jumper settings, think they are right.
- Even tried the DAC without Ballsie. Have no caps on the DAC board (because of Ballsie) wired them externally.
- Tried to find similar problems in the forum, the only one was a DAC thal had VMIDL/VMIDR tied to ground - mine hasn't.

None of my experiments lead to any changes the distortion remains the same.
Some pics of my setup (due to experiments not final)




So my question: What to do next?

Thanks in advance.

With best regards

Florian

Edited by user Monday, December 13, 2010 4:19:38 AM(UTC)  | Reason: Not specified