help identify this subwoofer

[Paulhertz]

Okay here goes a little over a year ago I bought a subwoofer. It was sold to me through Amazon and woofers etc as a sundown x18. I used it briefly in my work van but really wasn't overly thrilled with it and took it out and haven't had any audio in the car. No one ever complained when they saw it or said anything to me it shows a lot of people ask me what it was and I told them. now I recently decided to sell it and listed it on Facebook marketplace. I got an instant rash of s@&t from people telling me that it's not a x18 and that it is something else that's only worth about $150. So please any input help, did I get f$-@cked over here. If so I plan on suing woofers etc.

[wamba]

looks like a  SA to me

[slowfkncar]

I don't buy shit from them after my last experience, looks like an sa18 to me also.