Just bought a Spider V 30 watt amp. Am trying to connect my android smartphone to the amp so I can edit the presets using my device... but I "need an OTG adapter to connect to the other end of the USB cable to my smartphone". At least that's what the app says.
Being that I am technologically challenged with these things, I don't know what an OTG adapter is. I'm really unsure what works for this application. Any suggestions?