Proto Fusion FCA-4000. Has been dropped on both ends (by UPS once and Fed Ex the second time LOL). ZedAudio fixed up the RCA end and replaced speaker terminals, power and ground terminals could use replacing if you can find them, or just throw some silicone on. I'm running it now with just some tape in there, goes like a ***** ape and they are reported to do close to 9K if you can feed them 18V and get your impedence low.
Looking for 675 shipped. I have another that's out being repiared in very good cosmetic condition that I would sell for 800 + ship when it comes back