Will S1 be loud enough?

I am planning to do some meditation classes in a room with 75-100 students and am planning to bluetooth some music through it and mix my voice in with a wireless mic. Considering that the room should be very quiet (people meditating), will the S1 Pro be adequate for loudness?

 

 

In my experience, I would say yes. 

 

I use s1's for ceremonies. When there is little to no ambiant noise, you'll have no problem with the s1 for that size. If you were looking for booming bass, I'd say no. But im guessing you don't need that.