sounds like it could be a ground loop I would try lifting the ground on the sub with a cheeter plug and or grounding the sub to the preamp/amp. Maybe try a different cable also. I don't think the driver is the issue.
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I just found a number of small tears in the surround of the woofer which are obviously the source of the air leak. I don't know if this is also the source of the buzz, but I guess I'm due to replace this woofer, and am now accepting ideas for a good 8-10" woofer. I say 10" because I am totally open to fabricating a new enclosure for this amplifier. It will still be sealed, but besides that, please recommend a woofer for me that will respond quickly and won't buzz! I have yet to find any Monitor Audio metal woofers for sale, But I'd be open to those or anything of like response. Thanks!
When I connect the same signal cable to the ASW110, the buzz is not an issue, so it's not the signal cable. I suppose it could be the ground on the power cord, but I guess I'd just be surprised as it seems more like a woofer deficiency/mechanical issue (does not seem signal related, but rather output related). I would try your suggestion with the cheeter (cheater?) plug, only I have no idea what you're talking about. I also wouldn't know how to ground my sub to the preamp/amp; are you talking about the power ground or the signal ground? Some clarification might help me a lot. Thanks!
You can repair the surround on the woofer. It is probably still good. New foam surround kits can be bought on the net or Ebay. It's pretty easy to do.
A cheater plug is something you can get at any hardware store for 50 cents. You plug your three prong plug into it. The cheater plug itself only has two plugs.
The cheater plug might help if there's a hum caused by a ground loop problem. The 'farting' sound is definitely caused by the leaks in the foam surround. As Warnerwh suggested, there are kits to repair them. But depending where the rips are located, it might be better to purchase a new driver to ensure a proper seal for the best performance.
The rips are located at the apex of the curvature of the surround, at where a few of the bolts attach the woofer to the cabinet. I guess this just must be a point of stress for the surround, but it is foam, and decayed so much that I think I just need to buy a new surround. I will see if I can find one somewhere, it looks pretty standard issue. I'd hate to buy another driver, I'd rather just sell the amp and use that money to buy a whole new subwoofer, I see some cool ones such as the Aperion S8-APR go for not too much and would certainly be better than what I've got (or could have, even with a new woofer). I digress, I will look into replacing the surround.