I am such a frieking moron! I had my subwoofer about three feet above my desk for a long time now. (Some desks have additional platforms above the monitor one). Today, I decided to try the sub on the floor, and whoa! 
		
		
	
	
		
	 The bass is so much better now 
I shoulda had it on the floor in the first place
 Well, at lease I don't need to get my SB128 replaced anytime soon now 
<----listening to some MP3's.
			
			
	I shoulda had it on the floor in the first place
<----listening to some MP3's.
				
		
			