I am new here, and splurged this Christmas on an all new Polk setup. Big upgrade from a $500 home theater in a box! I got Polk RTI A9's floorstanding speakers, CSi a6 center, RTI a3 bookshelfs, and an onkyo 818 receiver.
Anyways, I am having this issue which is absolutely driving me crazy. The audio coming out of my center channel speaker sounds very nasal, muffled, and quiet in most processing modes. This happens on Blu Ray movies and sattelite inputs(i am currently running HDMI but have tried optical to see if it would make a difference it didn't). This also happens while watching TV. About 50% of the shows I watch on TV have this issue. Any movies on TV wherein Dolby digital is utilized about half the time its just nasally and to damn quiet. If i use all-channels stereo with no processing the center shines and sounds amazing. Commercials the center sounds amazing. 50% of the channels on sattelite the center sound fine. All of my blu ray movies it sounds nasaly/muffled.
I ran audyssey to let it calibrate a few times and this has not improved it much. I currently have my floor-standing set to large and they are crossed at 40hz, my center is crossed at 150hz. My center is about 7 feeet away from where I am sitting (smaller room). The auddsey has set my floorstanding speakers at -4, -5 db, and my center to +5.5db. I have bumped it up to +12db just to be able to hear dialogue although it sounds hollow on most movies. The center is ear level about 3" from the back wall. I am going to try moving it farther from the wall and re running auddsey.
Anyways I am looking for suggestions. I have maybe 30 hours of playing time so far on my center, but honestly can't enjoy blu ray movies. I have played with Dynamic EQ to help different db settings dolby volume, played with all settings on my sattelite out, and blu ray player. I assume this has to be a problem with either the center, or the receiver. I am getting close to the 30 day ownership mark on my components and everything was purchased on amazon so if i need to try swapping something out i need to make a decision quickly. BTW I love home audio, am a little inexperienced but am reading and and learning. Thanks for any help/comments.