I am new here just upgrading from a 61 key semi weighted keyboard to an 88key hammer weighted controller and wanted to buy your MIDI Expression Quattro converter to use with a Roland RPU-3 triple grand piano style pedal (I also play guitar and I have other pedals as well as I play the drums and I have 2 spare Alesis hi hat pedals that I will also be using)
So I was wondering if the Roland RPU-3 triple grand piano style pedal http://www.roland.com/products/rpu-3/ is compatible with your MIDI Expression Quattro converter system.
Thanks for the help!! What you are doing is great there is nothing else like it around.
That pedal will work fine. It's a bit of a shame that it's has three separate TS jacks. Using an adapter, however, you could combine two of the mono connectors into a single TRS jack so that it would only take up two of the inputs. Here's a link to the adapter.
Would be fantastic to do what you said and have them just in 2 slots so as the other 2 slots are free for other use as I have 2 Alesis hi hat pedals I can use as I said before.