Basically, its making noise where it shouldn't be. Any audiophiles out there willing to lend a helping hand? This only happens on REALLY low audio frequencies, and this song had loads of 'em. Typically under 65-70Hz.
[video=youtube;TPXbQkVIDLQ]http://www.youtube.com/watch?v=TPXbQkVIDLQ[/video]
Maybe you put up the volume a little too much? My 5 year old creative speakers make the same kind of "woofing" sound. It's not a bassline anymore but my feet are getting cooled by my subwoofer.
Either the build in D-class amp cant keep up with the power needed or speaker came lose/is vibrating against other hardware.
[QUOTE=taipan;38700021]Either the build in D-class amp cant keep up with the power needed or speaker came lose/is vibrating against other hardware.[/QUOTE]
As far as the speaker being loose, I don't think so. Usually that type of thing causes a rattle or irregular vibration. I still checked though, and the speaker is not loose. Regarding power, a big sign of insufficient power draw/management is distortion/clipping. Neither of these symptoms are there.
Right now it looks like there's not much I can do besides dampen the box.
If you guys still have any ideas, let me know. Thanks
Is it easy to open the case and inspect the circuit for faults?
Not as easy to just open the cover and inspect how the sub is seated. The difficulty of examining/fixing speakers amps that come prebuilt is immense. They do it like that so you're inclined to buy again rather than repair. All of the speakers are functioning and functioning well. Including the sub. The only problem is cheap port + powerful 5.25" = forced, harsh airflow. The problem isn't within the electric components or the mechanics. The problem is within the design. Unfortunately it just pushes too much air, and there isn't really a fix to this besides sealing (will lower volume substantially) or dampening (requires modification of box) of which I didn't feel comfortable doing. I'll just have to stick with what I got.
That sub was poorly designed, simple as that.
You're right, the hole is way too small for the amount of air that woofer is moving, causing port noise.
you could try modifying it to have a larger port...
[editline]4th December 2012[/editline]
The cabinet is also about half the size it should be
It's not that bad. I'd like it to be better, but its not THAT big a deal. Thanks for the suggestions guys.
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