Polk RT800I crossover upgrade?

[Ron C]

Hi
Anyone know how I might upgrade my crossovers on polk audio RT800I speakers?
The audio store I deal with told me it can be done and it would make it sound 25% to 50% better. Or if you have any comments please let me know

[Pat]

If you are still around to read this.........visit the Polk Forum, those guys talk about their upgrades every once in a while.