This is an unbranded, built and bought from the same vender as the Sundown SFB 8k. I also have 5k amps, 600.4 amp, 8 8ohm midrange speakers all brand new. I have many subwoofers 12 and 15 only. Let me know anything you might be interested in.AA25B18D-55CD-40B4-B0B2-7F6B1616B080.jpeg3F48D453-E55D-4870-BA7B-3B6B53C17D60.jpegEDEE8E6A-1A94-410E-AC00-F04268D5C673.jpeg38A058C0-83C1-45FC-A241-0D785A810840.jpeg