Originally Posted by walke108
I just swapped out my receiver from the Denon 1911 to the Denon 1913 and was having the exact same issue...my midbass was gone and it sure as heck was there on the 1911. Knowing it was there, I started digging into Audyssey...and found it was the culprit. The Dynamic Volume to be exact. Make sure you go in and turn that baby off. It was killing all of the bass in my XS30. It defaulted to Medium Compression on all of my inputs, so I have had to go in to each input and turn it off. Major difference. I did keep the Dynamic EQ on which helps the mid bass punch a little bit. Hope that helps some!
Well, after doing a little more poking around, it appears as though my fronts and center channel were getting crossed-over at 40hz for some reason. The center is rated -3dB @ 60hz and the mains are -3 @ 48hz. I know that room gain can improve response, but I'm quite certain they aren't getting that low. I'll have to run it again tomorrow with the crossover set higher and see if that fixes things, though I'm somewhat convinced that i'm dealing with a larger problem, as there is more wrong with the sound than the missing mid-bass.
Something appears to have happened between now and the last time I used Audyssey. I used it when I got my speakers a few months ago, and have been very pleased with the results. However, now it's giving me nothing but problems. For example; if I do a reset on the receiver, everything sounds pretty good without me having to change any settings from default. The speakers have a nice full sound, and the sub plays everything very cleanly and blends well with the rest of the speakers. But, if I run Audyssey, it seems to suck the life out of the sound above 40hz.
The strangest part though, is that the sub volume goes up dramatically, and not in a good way. It's as if Audyssey boosts a small frequency range by a very large amount, and it makes the bass sound extremely muddy/boomy. Audyssey even turns the sub level down a little compared to default, yet it's still twice as loud as it is with just the default settings. It gives me lifeless sound, and a sub that just plays a really loud 30hz note anytime there's any bass to play. I would compare it to listening to a table-top radio during a thunderstorm.
I'll run Audyssey again tomorrow with the cross-over set higher, but I have a feeling that it's just going to give me even more one-note bass. The wire for the mic is pretty long and thin, I wonder if maybe it has a short or something.