The pitch from right side doesn't work the failure is bad component, i open the vms4 and change the other pitch fader and it's works fine, the ch4 analog doesn't work, no audio from there. The others channels works fine. I been used the vms4 from 12 to 16 hours totally. 2 events and in the second fail the pitch. 4 hours of partys and about 10 of configuration on traktor. I'm ver y carefull with my equipment, i've got equipment from others brands (good brands) from years and still working fine, very fine. Take care! It's a crappy toy this vms4. I thought change the pitch from another brand or something. because all components seems to be cheap. The vms4 presents others failures like the knobs in traktor, sometímes crashes in traktor too. Etc. I hope this info Finds it useful. If u need it i can sends u pictures or photos. Good day and happy life.