Thanks for you detailed reply
My laptop is connected to the midi input on the SD50 via a separate midi module. I used to connect via USB but when I got a new computer running Win11 I discovered there is no driver avaiable from Roland.
I am connected to the Focusrite Solo via a separate USB from the computer and am using the Focusrite ASIO driver.
The audio outputs from both devices are connected separately to a mixer as is the keyboard output. The mixer has no master EQ.
My keyboard is also connected to the mixer.
The combined output then is connected to two Bose L1 speaker/amps.
I am not sure how to answer the question about audio output.
I assume that I could solve my problem if I had a mixer with a master EQ but I was hoping I could do it within BIAB.

Last edited by Tony Wright; 03/20/26 05:34 AM.