Well, the problem is that firstly i intended using the instrument by itself. Then, after a while i decided to try out connecting it to my computer, i bought a simple midi to usb cable, but unfortunately the cable is not working properly, so now i don't have any connection to my computer, before i can afford an external sound module. How do you connect your Kat? Perhaps there's a not very expensive way i don't know about?
I tried with a pedal, but i find it quite frustrating, because i use my sustain pedal(+ one controller) all the time and using a 3nd pedal really messes up my balance. That's why i wanted something i can manipulate with my hands. Using a computer to emulate the vibrato and equalising though is not a bad idea. When there's a mixing table - yes, but when i play gigs in bars there are usually only combos with very basic EQ, which doesn't really work.