Easiest setup to loop both guitar and mic separately (to old iPad 2)?
I'm currently busking on the streets of Newzealand with an acoustic guitar (Yamaha APXT2 travel guitar, https://usa.yamaha.com/products/musical_instruments/guitars_basses/ac_guitars/apx-t/index.html) and a mic, both connected to a small portable amp (Roland Street Cube, https://www.roland.com/global/products/cube_street/). I'm pretty new to looping, but I want to use it for future busking. I played around with Group The Loop (which luckily is working on my ooold iPad 2) for live looping, and it looks very promising to me.
My only problem is, that I can only use either my guitar or my mic for looping, as I can hook up only one of them to the mic input of the iPad (using an iRig 2, https://www.ikmultimedia.com/products/irig2/). I hoped that the iPad's input would be stereo so I could route the guitar to the left channel, and the mic to the right channel; but apparently iDevices generally only offer mono input through.
This is a bummer, as I'd really love to record and loop both mic and guitar in the same song, so I can build up complex loops, like strumming and a separate bassline using my guitar, and singing in harmony or doing beatboxing through the mic. At the time being, I have to decide for each song whether I want to loop guitar parts, or mic parts.
I asked at the Group The Loop forums how to solve this, and I was told to ask here, as it is unclear whether there is any external portable mixer which supports my iPad 2? I've taken a look at the Roland Go Mixer (https://www.roland.com/global/products/gomixer/) but it seems to be working only with lightning, not with a 30 pin dock connector.
So: do you know of any easy way to get a stereo signal into an iPad 2? Otherwise I will have to think about replacing it with a slightly newer iOS device...
Thank you for any hint. All the best.