I have found that bi-wire runs of speaker cables tend to be more critical on some speaker designs than others. The speakers I am using currently (Reference 3A Episodes) Have the bi-wire option, and they sounded much better when Bi-wired with the same brand of cable versus single wire with a bare ended wire jumper made from the same speaker wire. It really opened up the width, depth and layering of my soundstage. With another pair of speakers I once owned, the most noticable change was an improvement in bass definition and clarity. Hopefully, your favorite wires are affordable, and it won't hurt the budget to give bi-wiring a try.