All sorted now in Dual mono mode , initially it was on default 3 zone Yamaha. Working fine with the El cheapo stereo to mono splitter.

Hi there . I have an ATV EX5 kit, and edrum in 4 . I,ve expanded the kit with 2x yam pcy 13.5 cymbals, 1x yam 15.5 cymbal , 1x ATV 10 inch pad and a Yamaha XP 120 SD snare pad. Upon adding the yam snare I’m now an input short , I’m using the edrumin for the Yamaha kit and currently using the ATV sna...