Powercords and Speakers

I own a pair of Von Schweikert DB100's speakers that contain a seperate amp in each speaker that powers the bass. They came with their basic cords that are plugged into the wall behind each speaker. Do you think switching up to a better powercord for each speaker will have a worthwhile sonic improvement? I'm a believer in good powercords and use them for my components (Ensemble and Foundation Research LC-1). But since the speaker takes the signal from my mono's, which already have quality AC, and uses it to engage the bass amp; and since we're only talking about bass reproduction are improved power cords worth it? Thanks