Power cables for AvantGarde speakers

Power cords have a pretty good effect on bass when used on full range components. On subs however, not so much. So I think what happens is the power cord has enough effect on the higher frequencies where our ears are very sensitive that it improves the upper ranges of bass and we hear it as tighter bass all the way down. Similar to the way a super tweeter improves imaging and clarity even though the frequencies are so high we cannot even hear them as individual separate sounds. 

So you can try power cords. Might make a difference, probably depend as much on where the bass amp crosses over as anything else. Or you can try the Podiums, which we already know from guys here who tried both are very similar to but even better than the Gaia. Forget if it was Ozzy or someone else. You can probably find it in one of the two recent review threads. There is a pretty decent price differential, they could probably steer you and help figure out if it'll be worth it or not. All I know, the bass improvement on Podiums is so great that out the window went all my plans for tube traps.

You don't mention your budget, might be too expensive, but Townshend Podiums will tighten and extend bass response, much more than any power cord you can find. Read the recent reviews, mine and ozzy,  improved bass is one of the biggest benefits. You will also get much greater detail and imaging, with the speakers disappearing, something power cords will not even be able to touch. But this will not be at the risk of changing the overall character of the speakers like what might happen with interconnects or speaker cables. All the great qualities you like now will be there, only with a lot more clarity, focus, and with greatly improved bass.