$450 will buy you a b stock svs pb1000
I used to own a PL200 replaced it with an SB12, the PA is very similar to the PL200.
The PL200 was very good with movies though at times boomy, it did well with music as well. The SVS is just a diffrent type of subwoofer, the quality of bass is much better. Either way if you budget is closer to 300 the Bic PL 200 or the PA will keep you content