Euphonium Bell Angle: How Does It Affect Your Sound to the Listener? 3-Way Demonstration 

Using 3 examples of bell angles I use sometimes, depending on the musical passage (and the room).
Example 1: pointing toward the back of the room. This can create a smoother sound with less emphasis on attacks.
Example 2: a neutral position with a good balance of tone and clarity.
Example 3: pointing more toward the audience, for when I want to articulations to be really clear.