Welp my main goal is to run the bass sounds from my MIDI controller through my bass cab, as well as my bass sounds from my actual bass. I bought an aby splitter to do this, but although when i switch from A to B it works, but when i want A and B inputs to be playing at the same time, you can barley hear my bass, and only hear MIDI. I have it setup as my output from my laptops headphone jack into the B input, and my effects and bass into the A input. Of course the one output goes to my bass head input. Could someone please help me solve this dilemma?