New to this

Not sure if you got the 2 or 4ohm version (double check).

I’d recommend a class D mono amp stable down to 2ohm minimum with some oomph to push that sub. I’d shoot for a min of 500w, but 800w would be “better” depending on how hard you want it to hit, etc.

I’ve been out of the car audio scene for a bit, but I’d shoot for a JL Audio, Rockford, or Kenwood(excelon), they’re generally solid. But there’s a bunch to choose from TBH.

I’d avoid the off names, lot of rebadged crap out there.

Maybe check out the DIYcaraudio forum as well. Lots of knowledge, helpful folks over there who are probably familiar with that particular woofer. (I’m old school and still running my class A JL Audio and Rockford Punch DSM amps from the 90s - lol)

Anyway, crutchfield has decent deals on some class d mono amps.

https://www.crutchfield.com/p_13698363/JL-Audio-JD1000-1.html?tp=35834

BTW, just an FYI Sundown recommends not using a sealed enclosure for that woofer. May want to give them a call on your enclosure.