Greetings, I have a jtv 89f 2.22 updated and plugged with a variax cable in a HELIX 2.21 updated, just when I plugged it, the sound apear to be realy low and increase slowly by it self ... the only solution to fix the volume is to block it in the helix ... does any one have this problem ? https://www.facebook.com/samtouchevraiment/videos/1866046883413443/