I just found this thread and some day I will go through all 8 pages. But for now, I am having a problem with my HGS-10 sub and thought that someone could help.
I have had this sub for 4 years and I have loved it. Just recently, I built a HT in my basement and moved this sub (and all my other stuff) down to the basement. I did a quick calibration of the speakers (nothing on the sub) and then put in a movie (Toy Story 2, my reference DVD). I immediently noticed a strange sound and narrowed it to the sub.
So, out came my AVIA DVD and I did a low frequence sweep on the LFE. Now, I have done this dozens of time (especially when doing my bass shakers setup and trying to find items that rattle) and this time the results were different.
The Low Freq LFE sweep starts out and 100 hz and goes down to 20 hz. I used to get a satisfying tone that got deeper as the sweep progressed. Now, I get lots of distortion or something. As the sweep approaches 40 hz, I can start to hear a buzz. The volume of the buzz increases as the hz drop and when I get to about 29 hz, all of a sudden the volume really increases. It is like someone started a chainsaw in my HT.
So, what gives, did I break my sub? All the rest of the equipment is identical to what I had before. Did it some how get damaged or did it wear out? Any help would be appreciated.
Because I am a complete goofball, I have attached a wav file that I recorded off my laptop of what the LFE sweep sounds like. The wav file should start around 40hz.
I thought I should add that I use a Y splitter to connect the sub. Also, I have the subsonic filter set to 20hz. If I set the filter to 35hz, the buzz is somewhat reduced. Also, I use the internal crossover of the sub. I usually have it set to around 100 hz. Also, the volume control is usually set to about 4 dots from minimum.
sub.zip 173.9111328125k . file