Hi! I have used 2 Bose S1's as well, and it has been really great so far. Very clean, loud if needed. I even had to slightly reduce the bass since they are surprisingly bass-strong. Very clear sound. I have never heard them clip. I have used them mostly in rooms for up to ~100 people. I tried using just 1, but when I used 2, the sound really opened up and sounded much better (stereo) as I wrote in a separate note.

This is with Tyros5 initially, and now with Genos.

Jim