Hi Dieter,

Both the BIA and 4ms Ensemble will benefit greatly from attenuation on the inputs. There is no built in attentuation on the BIA, and only some of the inputs on the 4ms Ensemble are attenuated by the module itself. I've got attentunation modules next to both of these in my setup.

The OPTX works great with Bitwig for sending additional pitch, modulation and triggers to your rack. But the inputs are AC only - works fine for triggering Bitwig from your rack, but you'll need to use the Grid to modify incoming CV signals to get Bitwig moulations that are related to those coming in from your rack.

Have Fun! Martin