I do agree with Dave that cables and cords make a significant difference.
I don't agree.
I auditioned the JA Perspectives numerous times at a high end store, with various different high end cabling (because I auditioned them several times, they put them in different set ups).
I also auditioned them at home with my "lowly" non-high end cabling and they sounded like they did in the store.
Don't expect cables to save or alter speakers. And larstusor "burning in" will happen in your mind as you adjust to the sound. Which is ok ;-)
Think speaker/listener positioning, room acoustics first.