Originally Posted by kspann
I am bashing my head in trying to fix this and any assistance or guidance would be greatly appreciated.
it's apparently the LFE track in the movies you're watching.
rather than fight it, you can do some "housekeeping" and find the buzzes, rattles, etc and deaden them with felt pads, more secure mounting, weatherstripping or similar. which you should do anyway
I did using a test tone disc and it helped quiet my room, the inserts in my windows actually rattled, and putting in some weatherstripping behind the inserts solved that problem.
OR you can look at your manual, pg 28. look at the LFE Attenuate setting. by default it's at 0 dB. you can reduce the LFE output in steps from -5 to -20 dB.
MOST enthusiasts welcome
the ultra-low bass freq and higher output that goes into dynamic, special effects laden movies like Avatar. I can tell you the 1st time I watched U-571 with only 1 sub (I have had 2 now, incl an 18"er, for a number of years) during the depth charge scenes, the explosions were real sounding, loud & punchy, I looked around the room to see if any cracks started! It startled me, since I had never had a sub until then, was used to the bass in most rock/pop music. But it didn't take long before you begin to appreciate what's in some of these soundtracks and look for it
when the animated movie, the Incredibles came out, it was discovered that the LFE track actually contains energy in the < 10 hz range, below audible levels...wall shaking bass
you will find MANY action/adventure/scifi movies with the levels of bass energy that you noticed in Avatar.
but if you're room is connected to the kitchen, your wife might get tired of the dishes rattling in the cabinets
so try the attentuate settings & see if you can work out a compromise. you can also reduce the sub level in the MCACC settings but using the attentuate audio setting might be better way for agressive soundtracks. you can adjust to taste.