Sometimes I use the audio output from both drums (and Songsterr from an iPhone) into an external mixer and noticed that the SamplePad randomly resets itself every 15 minutes or so.
Sometimes I do not use the audio out from drums into the mixer but plug in the USB MIDI outputs into a MacBook Pro and use the oudio out from there. Noticed that the SamplePad does not reset itself.
I stopped using the audio output into the mixer configuration because I'd like to not destroy the equipment.Attached a rough schematics of the complete setup.
Any clues why the SamplePad resets itself ?
Is it a possible "ground loop" ? The power supplies of both Alesis drums are "wall wart" style, without ground on the plug. Both are mounted using plastic pads, so there is no common ground.