I will post the pics within the next few days. It was a simple jump of the opamp. Now if you desire to use as a headphone amp, maybe try a higher value resistor as the increase of feedback lowers gain, but seems to push the noise floor a little higher (when using headphones). As a preamp, the sound is very transparent with the volume knob from low to mid level.
I do still hear the 1 khz, but I have not troubleshot with my scope yet. I honestly believe it is the PCM clock that is causing the noise.
I removed the XR1075 chip and the noise is completely gone, that is because it breaks the signal path , so I can only assume the origin is before the xr1075. I did some trace routing, but it is very difficult with black mask over the board.
I am sure with a little more troubleshooting, the noise can be illuminated, but my guess is the PCM/DAC must be disabled to do so.
Most of my Google searches for DAC hiss, suggested upgrading DAC's. There just has to be a way to illuminate it, either by upgrading to a much better opamp, or active filtering.
we will see.