Munk, I think will find your answer in this discussion:
batpig posted: (copied onto 1909 thread by Soundof Mind from 2309 thread, #640http://www.avsforum.com/avs-vb/showthread.php?p=15183649#post15183649
1. The whole point of Audyssey is to compensate for acoustics of your specific room, and due to those acoustics the calculated -3dB point (where Audyssey sets its crossover) could be above or below the manufacturer's specs. Audyssey is just reporting the results of its measurements.
Anyway, it is a known issue that Audyssey will sometimes set the crossovers too low, and it is in fact encouraged to raise up your crossovers a bit, and set speakers to SMALL, as few speakers are that effective below 80Hz.
As a starting point, I would probably raise your Monitor 5's to 60Hz and change them to SMALL, leave the center at 80Hz, and raise the surrounds to 80Hz. Tweak if necessary from there...
2. The subwoofer crossover is a low-pass filter for LFE signals, it doesn't have much to do with the bass management (it just "tops off" the LFE signals from multichannel soundtracks) so don't worry about it. Most people recommend raising it to 110 or 120Hz just to allow more room for LFE.
3. Even if a speaker is set to LARGE, it is assigned a crossover frequency because if you set your sub to LFE+MAIN the subwoofer will "double up" the bass on speakers set to LARGE. Again, you should probably just set them to SMALL manually.
Pretty much all of your questions are common Audyssey issues and you'd be well served to read through the first 20 pages and the most recent 10-20 pages of the official Audyssey thread:http://www.avsforum.com/avs-vb/showthread.php?t=795421
Also read this step-by-step write-up on setting up Audyssey, compiled here at AVS... it covers the crossover issues very well:http://www.avsforum.com/avs-vb/showt...5#post14456895
And here is the Audyssey FAQ from Audyssey:http://www.audyssey.com/faq/index.html
There's yet more at another batpig post:http://www.avsforum.com/avs-vb/showt...8#post15018218:
Here's some info I thought was useful from the official Audyssey thread to help allay confusion about LFE vs. LFE+MAIN, and general bass management in Denons:
Originally Posted by Larry523
Mains - Large
Sub - LFE
In this setup, the mains run full-range, no bass is redirected to the sub from the L/R channels. The sub only gets the LFE channel. The crossover setting in this setup is ignored.
Mains - Large
Sub - LFE+Mains
In this setup, the mains run full-range as before, the sub gets the LFE channel. However, in this arrangement the frequencies below the mains crossover setting are sent the mains AND the sub. This is the so-called "double bass."
Mains - Small
Sub - LFE or LFE+Mains doesn't matter
Here, the mains only play frequencies above whatever their crossover is set to. Anything below the crossover is redirected to the sub. The sub plays the LFE channel and the redirected bass from the mains regardless of what you set it to.
Originally Posted by David Aiken
Denon's Large/Small distinction is one between running the speaker full range or not.
The LFE/LFE+Main option only works for Large speakers. It does nothing for small speakers which always have their bass handled by the sub. With large speakers it simply offers the option of having the sub double the frequencies below the chosen crossover (LFE+Main) or having the sub not handle any bass for the speaker (LFE).
So what these settings really mean is:
Large/Small: This turns bass management on and off. Small speakers have their bass managed by the sub while large speakers do not.
LFE/LFE+Main: This is the "double bass" toggle for large speakers. LFE+Main turns double bass on for frequencies below the crossover you specify, and LFE turns it off. This option doesn't do anything with Small speakers. It only works for Large speakers.
The "Sub Crossover" is actually an LPF filter setting applying only to the content of the disc's LFE channel if it has one. It doesn't affect moving any part of the sound between the sub and the speakers. It simply controls the upper limit of LFE channel material being handled by the sub and the LFE channel is always handled by the sub if you have one.
So set the speakers to Small, choose a suitable crossover frequency, and set the "Sub Crossover" to 120 Hz and you should be hearing things as the mastering engineer intended.
hopefully that helps somebody who is confused about the sub settings and how the sub crossover is NOT the same as the general bass management settings! If I could add it to the FAQ I would...