The new tones are way too soft and as a result are inaudible at speed. They could be twice as loud as they are now at the loudest setting and they still probably wouldn't be audible. There should be a way to select a different tone set that replicates the frequency, pitch, and volume of the buzzer on the 1040. I can somewhat hear the radar alerts, but the tone for hitting the first and last gears when shifting Di2 might as well not be sounded at all.
2024-07-17: to clarify, by "soft" I am referring to the design of the sounds. Yes, the volume is too low for them to be audible, but a large part of the difficulty in hearing them is due to their soft design. The 1040's buzzer sounds have hard attacks, high pitch/frequency, and loud volume.