Display MoreHi Zoso,
Welcome.
I have used a "Y" cable, the 2 mono jacks into my EB J 250k volume pedal and the stereo jack into the KPA. Inside the stereo jack casing I soldered a tiny 27k resistor between the tip and the ring contacts. This brings the maximum resistance seen by the KPA down to about 24k, which is within the KPA impedance range as against the standard 250k which is presented by the pedal without this modification and well outside the KPA range.
The pedal of course also remains quite useable as an analogue volume control and the whole cost has been about £5 (Great British Pounds) for both the cable and the resistor.
For volume control, I am delighted with the full range result and have yet to test the wha and other expression pedal effects. I know the wha effect has a wide range of adjustments so I am very optimistic.
Best of luck,
Paul
Hi again Zoso,
Just to confirm that EBJ 250k volume pedal with modified "Y" cable works great for me as wah wah as well as volume.
Cheers,
Paul