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nickrose wrote:

joszwa80 wrote:
So if i understand u correctly if the expression pedal works in normal mode it doesnt guarantee itll work in the split Tap and Exp mode?

Indeed – in normal mode it has a stereo (TRS) jack, which is compatible with a TRS volume pedal, while in split mode the H9 offers a mono (TS) jack, which will give 0-100-0 when used with a TRS volume pedal.

joszwa80 wrote:
  Does Dunlop X work? I wanna know before i sell it to get another pedal. Ernie Ball Exp 25k definitely works right??

I’m not familiar with Dunlop X. Hopefully its manufacturer of one of our other users can help.

Ernie Ball Junior 25K is one we recommend – note that you must plug into the socket marked “OUTPUT.”

Please also read out technote https://www.eventideaudio.com/support/downloads/using-both-aux-switch-and-expression-pedal-h9


“Further, many Volume pedals have too high an impedance, meaning that the pedal will only operate over part of its range – the impedance should ideally be between 10K and 25K.”

“Be aware that many expression pedals are hugely over-complex things which can be hard to set up.”

nickrose – I quoted these two parts from the technotes. Would an ideal expression pedal for the Factor Pedals and the H9 be a pedal with a 10k potentiometer and a single TS output? 

joszwa80 – I have been using the Ernie Ball Junior 25K and can verify that it does work. I am also having success controlling two Factor pedals or one Factor pedal and one H9 simultaneously with the 25K Stereo Volume Pedal. It has some quirks though. For that reason, I would recommend starting with the Ernie Ball Junior 25K.