Hi. I don't have a helpful answer, but I do want to hear what others have to say, as I am very interested in this. I actually have the 99-909 Quad combo, as you say 330 into 20k. I don't have a good grip on how this works and what it means for the signal amplification etc.
At the very least, this bumps your thread up...
At the very least, this bumps your thread up...