Hi Steve,
The amp power ratings can be different as long as the gain is the same. All of our ADA amplifiers have a gain of 29dB.
No problem to mix amp classes, again as long as the gain is the same.
For an LFR reflections are your friend. Unless you are experiencing a particular room problem, I would recommend no added acoustical treatment.
The software can be updated from a header on the DSP board. It is possible to do an upgrade in the field but we recommend sending the DSP box to us for code updates. We can check the output this way also to ensure it has the code properly.
Thanks
Ian
