[rahimiv]

I have a pair of this speaker I was wondering how do I do the modification myself? anything I can do to make it sound even better without spending several times the cost of the speaker?

[Bill Baker]

Sure, there are a few things you can do with these speakers on the more affordable level. Simply upgrading the high pass capacitor with the "flavor" of your choice for starters.
 If you find the upper end a bit too agressive, increase the value of the resistors in series with teh tweeter to tame it a bit. I would not go beyond about 1/2 ohm. Use a decent resistor here such as Mills or similar.