What amp will be enough to push 1 orion HCCA 15.2 15'' ?

[Gustavo Padilla]

Orion HCCA 15.2 15"

* Sensitivity: 87 dB
* RMS Power Range : 2000 Watts
* Peak Power Handling: 4000 Watts
* Impedance: 2 Ohm
* Diameter: 15 Inch