L1 Compact Signal Path

I mostly listen to equipment to make a decision about quality.  However, I was recently asked by a performer if my Bose L1 Compact has any digital signal processing.  After reading manuals and a few wiki's, I am still not sure.   My recollection from a salesperson is that the line-in (channel II with tonematch to OFF) is an analog path, and that there is some sort of limiter at some point in the chain to protect the speakers - but the limiter is also analog.

So the questions are - L1 Compact:

  1. Is there any digital processing of the primary signal from line-in all the way to the speakers - or is the signal path all analog?
  2. If so, is there a way to disable digitizing of the signal path (and still have limiting, of course)?
  3. If there is a doc about the digital processing (or lack of it), please send a link (I couldn't find one).