[What's Up With the KG SW?]

I have a KG SW WAL OIL and need to know the power requirements , thanks, it looks just like the one from BRANDON78 in the thread

[Old Klipsch Sub, non powered ( KG SW WAL OIL )]

I also have one and trying to update with a new amp, but do not know how to power it when using a pre out on a new Yamaha, other wise it is a nice oak end table