wow what a world of difference using single stranded wire for the powered sub makes. i thought it sounded good before with the stranded wire but when changed to the solid conductor the bass was much tighter than before and i swear it was more transparent what boominess there was gone, blending in with the mains much smoother. if your wondering what im using (this will make some of you cringe) im using 12g electrical wiring. alot of work to connect them but worth it cost me 15dollars for 50 foot spool. subs are much louder after switching. thinking of changing wires in b.r. system as well.