Limiter
On the Bose® Pro Portable PA Community you will read about "compression" when the L1™ is operating at high volume.
Hilmar-at-Bose tells us:
- There is no actual compressor. The only dynamic processing is a protective limiter. That should only kick in, when you are hitting it real hard.
- This limiter is not per-se frequency dependent, but there are independent ones for the L1 and B1 and they are tuned a little different.