What power cord are you using on your Vandy 5A's

I fully agree with your description of the localization of the bass in stereo sound staging, and I can hear that in my system. I'm just not sure it can be accomplished solely due to the fundamental, and I'm still puzzeled why a PC would affect it as you describe. I also believe a change due to a PC should be at least partially identifiable in the mono signal (exception of 3D effects).

Yes, the 5As have the best subs I have ever heard and they are the most tonally coherent speakers I have ever heard. A killer for sure with or without PC upgrades.

I've tried a few cords on my Vandersteen 5As. Used the stock cords, then built a modified version of the Asylum cords. I noted a slight increase in the attack of bass notes, with a slight reduction of decay. Tried Shunyata Venom cords - even more definition on the attack, but bass began to sound a bit overly damped.

I'm currently using the stock cords again, but am getting ready to build another pair of modified-recipe Asylum cords.

I agree with you Zargon as well! It is not soley due to the deeper fundementals that's for sure. The equipment is the most important factor here (after setup of the speakers to the room). The cabling on your gear obviously is more important as well! I agree with you here whole heartedly. Its just, when all else has been explored, you've got everything set up pretty well, system synergy is really groovin, you can still fine tune the hall info, increase the size of soundstage, and focus of the deeper bass with Ac cords on the 5A's too, thats all. I think the hall info/size of recording space/venue is often more defined by the deep bass then the high end "air". That's why I think the right cabling on any subs is serious. Having footers and isolation that maintains that same priority system wide is helpful here too. But essentially we agree that it is not all the fundamental's.......

But you should still hear the Ac cabling of the 5A's is all. Listen for yourself, and see/hear if it is a positve change, not just change for changing's sake. Thats all, just trust your ears. And always enjoy your music/system.