I've done something a little foolish and taken my sub apart. The reason was that it kept making a clicking or weird noise (like when you touch the rca cable to your finger - feedback) even when the receiver wasn't on. The problem is that it was a blind unplugging of cables in the cabinet, and where I thought there were two cables, there were in fact three. Here's some info on the sub. Athena Sub 8 (I've heard that this is a rebadged Energy sub, from a 5.1 system Athena had a while back) 8" driver, 300 watt peak It has the speaker on the front and 1 hole/tube in the rear, so I think this makes it a "ported" system. I can't find a ton of info on it, other than a few "dead" links: Amazon link Here are some photos of the plates/internals: 1. 2. 3. 4. 5. 6. As you can see there are 3 "prongs" in the first pic of the transformer. It is an MCI transformer, with the following markings on it: 5AMT100NI and 04/15. I cannot find any info on this either, but the MCI website says they make custom transformers so this could be such an occasion. The PC boards all say "Audio Products International" which mean Energy. You can see in photos 5 & 6 that there are 2 white and one black wire going towards the bottom of the photo. These were connected to the transformer, and I'm not sure how to reconnect them. They are labeled as follows: White #1 - SP1 White #2 - SP2 Black - SP3 The other black and red wires are named GND and SPK+ respectively, and go to the speaker. Anyone that has any insight on how I can get this back together, would be a great help. Also, while I have it apart, anything I should check to solve that problem? could it be the cable or something internal. Lastly, those DIYers out there, should I bother with this? What could I do with it for a modest sum to really get more out of it. Thanks!