The images of it online, seem to indicate it is a passive sub. It's most likely an 8 ohm passive subwoofer so an easy load to drive. If you'd post pictures of the inputs ... we could stop guessing.
It's not really worth "fussing" with for the most part?? But if you want to use it with another system you can. You run speakers to the sub from the amp and from the sub to the speakers and your done! If it proves to be too "boomy" stuff a pair of socks in the port.
And sure you could drive it with a separate amp but for that sub, it would be overkill?? Now if you happen to have amps and stuff laying about unused and want to set something up just cuz you can ... that is different?? But we'd need a lot more details on the gear your using. My moto is KISS. I'm ticked off now cuz, I had to go from two buttons, AVR/TV to uh three, TV, Preamp and a Power Amp to turn the TV on! First World problem ... sometimes life is tuff??