Can iRig Keys I/O and iRig HD2 work together on iPad?

[ebronnik]

I have an interface for my guitar (HD2) and I’ve been trying to plug the Keys I/O through a USB hub and the sound stops working on both devices.

I’m using headphones output to plug speakers and it works fine on each device until I connect them both. After that the sound doesn’t work from either output.

I also tried Stomp I/O and it didn’t work either. It works perfect if I replace Keys I/O with a different midi keyboard, but I’d like keys i/o better.

Is there any way to use both devices at the same time on iOS? I would appreciate any help!

[Peter_IK]

You wouldn't be able to use two audio interfaces in iOS. There isn't an "aggregate device" type of functionality as there is in macOS.