Business ProfileforParts Express

I ordered a Dayton Audio UM10-22 10" Ultimax subwoofer through Dayton Audio's official Ebay account for $166.43 on October 24, 2023. Unfortunately, around the end of November, about a month after install, the subwoofer started making some mechanical noises. The subwoofer was defective, and I saw on the Dayton Audio site that it had a 5-year warranty, so I decided to give them a call. On the phone, the Dayton Audio (DA) Rep found my order number and asked me a few questions about my setup. I told him the details of my setup and he approved a return authorization on December 1, 2023, and gave me a shipping label on December 6, 2023. When a DA Rep received and assessed my subwoofer, he told me that the subwoofer would not be covered under the warranty. When I asked him what exactly was wrong with the speaker (because it looked brand new from the exterior other than mechanical noise when it played), he told me that the glue on the voice coil had failed, causing the coil to unwind and become loose in the gap (making the mechanical noise) and that "Glue from the triple joint broke off in large sections between the spider & former". To me, this sounds like there's an obvious issue with the particular glues they're using to manufacture this subwoofer. Making it a manufacturer defect that should be covered under their warranty. When I asked if I could receive my subwoofer back, the DA Rep told me that in order to assess the subwoofer it was "dismantled (destroyed)" so I couldn't even get the speaker back, they kept it. I don't think it's fair that Dayton Audio can advertise a 5-year warranty then not honor it. I was not given an offer for a refund or anything, and I wasn't even able to get my subwoofer back. That's $166.43 down the drain. I also don't think it's fair that I can send in my defective speaker under "warranty", and they just get to keep my property if they decide the warranty doesn't cover it. I want the subwoofer replaced under warranty or my money back.