Is that the same as the 12W7AE specifications wise?
Free Air Resonance (Fs) 27.2 Hz
Electrical “Q” (Qes) 0.514
Mechanical “Q” (Qms) 7.807
Total Speaker “Q” (Qts) 0.482
Equivalent Compliance (Vas) 2.33 cu ft / 66.0 L
One-Way Linear Excursion (Xmax)* 1.15 in / 29 mm
Reference Efficiency (no) 0.249%
Efficiency (1 W / 1 m)** 86.2 dB SPL
Effective Piston Area (Sd) 84 sq in / 0.0542 sq m
DC Resistance (Re) 2.47 Ω
For home theater use, a simple sealed box may be your best friend to keep port noise out of the equation and box design and size reasonable. 2-3ft^3 should be your absolute minimum. At 1000W, a 2ft^3 box will just barely let you touch on the Xmax rating at 10hz. A larger box will let you hit Xmax with less risk of thermal failure. I would personally want more like 3-5ft^3.
The Crown XLS series is rated for 4 ohm bridged loads. The driver you have in mind is 3 ohm.... I suspect it won't be a problem, just keep an eye on the amp, be careful you don't overheat it.
The JL recommended sealed and vented boxes for the driver are not what you want for a HT sub.
Personally, I think the driver has the greatest potential as a killer HT sub when loaded into a really radical 6th order bandpass bordering on compound horn/line type box... It's the only way to get a box design that both allows the driver to stretch it's mechanical legs without running out of thermal power handling, while also getting generous box gain. It would be a complicated custom build, probably around 10ft^3 external dimensions when all said and done though.