[funch]

The Taboo II amp has two pairs of inputs. The outer pair connect to the input on the volume pot. The inner pair connects to the output of
the pot. That pair is to be used with a preamp, like the CSP. A 1KR resistor connects from the pot out to the input tube pin. It is supposed
to bypass the volume pot, but I still have to turn the pot up to work with my CSP.
 
This may be a clue as to what is going on. The pot is 100K. If I measure from L-out to R-out, I get a reading of 200KR.
 
So, bottom line is, my direct inputs aren't so direct. Any thoughts?

 

[Budgie]

The pot would still be in parallel with the direct in jacks, shunting voltage to ground.

 

[funch]

Thanks. I did some further probing around, and basically came to that conclusion. I disconnected the direct line from the pot out and connected it to the
tube input with a separate resistor. Next, I'm planning on replacing the pot altogether with a DACT stepped attenuator.