My advice was pretty bad. What you might do before you change any components, like another poster said, play with speaker positioning. Maybe try a pair of the acoustic imager foam rings to reduce diffraction if they fit on your speakers baffle, a $5 tweak. Depending on your room some profoam level one by RPG would smooth out some reflected energy for another $50 and, depending on the cabinets, if they resonate a bit, try some dynamat like material for another $20. I did the latter on a pair of klipsch epic series and while it never tamed my harshness, it did have the effect of adding a subwoofer, the bass tightened up and went deeper, it was neat. All three of those tweaks are far cheaper than any electronics upgrade and, IMHO, better than buying any cable. None of that will "break the bank" as you said. Maybe even get the monster out and try a little run of Kimber Kable 4PR, its cheap, or even try just straight 16g wire and stock interconnects and see how things sound. I'm not a fan of monster. And put the speaker grills on, that can help too. All those tweaks will run you around a hundred+ bucks.