Audio combine - Two stereo into one stereo input

[santhrax]

or you can go with a cheap mixer:

Very very small companion mixer for OT

I recently bought this for my OT cause I was in the same situation with my mackie 1202 (too big and too heavy) connected the master out from mixer to A+B IN - so all my other devices will be routed thru the OT. from the inputs/connectors I don’t think it will fit your needs …

also fine from sound quality