Sorry Man. 
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@aangen @Chris_Brunhaver for academic use only though, what happens in this situation?
If I’m not mistaken they must be set to “small”, therefore not full-range.
I believe that in this specific situation all the frequencies below 80hz, together with the LFE ones, are destined for the subwoofer.
So if I set a HIGH-PASS of 40hz to my front L/R (PL500II), I deduce that the L/R signal below 40hz (Towers) + the LFE one will be sent to my future SUBs.
Right?
This way I wouldn’t lose any signals and I would have peace of mind that my towers wouldn’t be destroyed.
Excerpt from the manual of my AV10
https://manuals.marantz.com/AV10/EU/EN/GFNFSYaxhqtbzr.php#OKNRMLfvunedcc
Generally speaking, you want to dial things in so your speakers are set to large/full range AND set your subs’ crossovers at a point they blend in well when listening to music.
That’s the goal.
IME.
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Yes, exactly, this would be another method, but it wouldn’t rule out sending frequencies that aren’t too suitable to the L/C Mains.
If, however, in a purely cinema context, I set a configuration (as I described above) I think I wouldn’t have to be anxious during loud explosions.
I corrected myself, if I added my settings plus a sub-crossover point I would get the goal.
So, I think we’re saying the same thing. 
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Yes it would. All speakers are designed to accept a “full-range” signal. All speakers are susceptible to being under driven (clipping) or over driven (unlikely since you generally cannot listen comfortably at such levels). Setting the L & R speakers at full range simply means there will be an overlap of some frequencies as between the mains and the sub(s) - certain frequencies will be produced by the mains and the subs.
As @Chris_Brunhaver noted earlier in the thread, this is a benefit b/c having the same LF energy (not LFE) at different points in the room will help with smoothing/integrating the bass.
Keep reading up on this stuff because I believe you are headed in the wrong direction on this particular matter.
YMMV/IME/IMO/there are exceptions to every rule, etc., etc.,…
[Addenda: Looks like our posts crossed paths. Good luck.]
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Re:
“but it wouldn’t rule out sending frequencies that aren’t too suitable to the L/C Mains.”
That’s all I was referring to.
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I don’t think so, that would be called LFE + MAIN configuration.
Right? 
@Chris_Brunhaver “aiutaci” (help us)…
LFE is not generally shunted to the mains from SS channels. LFE is a separate “audio channel” with content intended for subwoofers (generally speaking).
When using a pre/pro with SS capabilities, it’s important to follow the manufacturer’s instructions, which will specify how LFE is handled and how to configure speaker settings. That said, IME with my Anthem AVM 50V, setting your L&R speakers to full range or large AND running subwoofers in the stereo and LFE channels is not not problematic (in fact its preferable).
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Exactly, I am referring to the fact that when you set a high pass crossover (I’ll give an example) at 40hz on L/R set to Large (full-range), the subwoofer will receive its specific channel (LFE) plus the low frequencies below the set L/R crossover point.
Then we can also specify how much bass the subwoofer can manage through a low pass, perhaps at 60hz.
However, they are different frequencies, not overlaps.
You would get that by setting LFE+MAIN.
All I can say is keep researching and asking questions.
We are not on the same frequency.
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I accept the criticism but I swear I don’t understand why.
LFE+Mains might be the hang up. I don’t know what this means - may be specific to your kit.
In that case, follow the directions for how and when to select full range settings for L&R channels.
One last attempt at clarifying my point:
Properly dialed in/setup 5/7.x systems using full range speakers/settings will not put your main speakers at risk from too much LFE.
Cheers.
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Yes, I think like you, always assuming, however, that the passive crossover circuit of the speakers is of excellent quality.
I’m referring to the components inside the cabinet.
Many times manufacturers exaggerate with the nameplate data and perhaps the speaker is not truly a complete full-range.
Maybe they write 22hz but in reality, it can’t go below 35hz.
Anyway, thank you for your clarification, this means that you care about the community.
Thanks again.
I understood that, because they wouldn’t have had that signal.
My question was: what if I don’t have a subwoofer?
If so, would that specific LFE signal also be sent to L/R?
I find myself in this case:
I have two towers (L/R) but no subwoofer.
“My question was: what if I don’t have a subwoofer?
If so, would that specific LFE signal also be sent to L/R?”
My understanding is that the answer is generally “No”.
You will likely indicate that there are no subwoofers in the mix when selecting the settings for your speakers with the AV pre/pro.
The pre/pro will “down mix” LF/LFE as appropriate if you indicate no sub(s) in your settings.
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Thank you, Scott.
Considering my girlfriend jumped off the couch yesterday with no sub and no LFE.
Well, when I add a SUB she will be pregnant.