Think

Rule #1 If the sub out is set 'on', then the LFE signal goes there, period; if the sub out is set 'off, the LFE signal will go to whichever out is set to 'large'; if no outs are so set, the LFE will go nowhere. Gone. Kaput.

Rule #2 Any out (other than sub) that is set to 'large' gets the full frequency range of that channel (not any LFE, just normal bass). If you turn the sub out 'off', then see Rule #1.

Rule #3 Any out set to 'normal' (small) will have all frequencies below the receiver's cutoff sent to A) any out set to 'large', or B) the sub out (to be mixed with the LFE). If you turn the sub out 'off', then see Rule #1.

Rule #4 Any signal between the sub's 'low-pass' frequency and the mains' 'high-pass' frequency will not be reproduced at all. (If, on the other hand, the bands happen to overlap, they will be reproduced by both.)


You said:
"With the Large setting all of the bass 80-100 blocked at the sub will be redirected to the mains."

Not exactly; the receiver does not 'accept blocked frequencies to be re-distributed'. More accurately, "With the large setting, all frequencies from MAIN channels, NOT LFE, will remain in those channels (see Rule #2).

As long as the sub out is on, no LFE signals of ANY frequency will go anywhere else (see Rule #1). Any LFE signal blocked by the sub's crossover will not be reproduced at all.

Conclusion: the only way to not lose the 80-100Hz frequencies is to keep the mains set to 'large'.

Larry
www.fineelectricco.com