FYI...
1) I agree that all signals to the sub use the sub amp
2) I've deciphered the switch positions one the sub (1, 2, 3) and what they do in various configs (basically pass speaker signal (vs line) or not; filter frequency response to sub or not (set high frequency limit, i.e x/o or none)
3) Im still testing line vs speaker connection to sub, but will likely use line, si I can bypass internal x/o in tower and sub and drive as 4 speakers using digital x/o to flatten frequency response (remove brightness and adjust for room nodes)
...Just trying to be helpful
1) I agree that all signals to the sub use the sub amp
2) I've deciphered the switch positions one the sub (1, 2, 3) and what they do in various configs (basically pass speaker signal (vs line) or not; filter frequency response to sub or not (set high frequency limit, i.e x/o or none)
3) Im still testing line vs speaker connection to sub, but will likely use line, si I can bypass internal x/o in tower and sub and drive as 4 speakers using digital x/o to flatten frequency response (remove brightness and adjust for room nodes)
...Just trying to be helpful