i have a legacy pace maker..ive tryed diff powercords,verses what come with it and come to use a diy from vh audio i think it was flavor 2,i didnt like a conditioner on the sub had ultimate outlet 15amp hc,took it off,99% of all companies will say dont,gives them a reason to justify the 2.00 cord they put with it,any good cord would be a upgrade to you sub,i would think they draw alot of current ,doing there job,i once changed a powercord on a sub i had that was hardwired with 18 guage power cord and replaced it with 12 guage one and it made a world of diff.go here and get some of this at your local hardware store.http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=100-577..its a easy fix to see if you hear some changes get the ends from www.takefiveaudio.com..for about 30.00 you can try it you wont look back,,