The old Orion HCCA subs were TC-9 / TC 2000 platform. Try to shop around for one of them if you like that performance. TC-3000/Audiopulse Axis is a little stronger and will work in a slightly smaller box, but can be a bit more peaky.
Really there's a gang of subs that'll take 1200W. Most that are built with a 3" coil should be able to handle that continuously if you set up properly. That Kicker 1200.1 is definitely capable of rated power. I ran them for years, a good reliable amp.