Hi, its not that my eciver will not drive them, they do sound very good great as matter of fact, i just thought that i would get more headroom and i would be able to turn it up higher and not have to worry about blowing a tweeter like i did before when i had my cheap reciver maybe i am just gun shy now, and pluse i like spending money.
If you like spending money, then buy the biggest Krell amp there is. But don't expect to get any real benefit from it.
Extra headroom is only beneficial if you actually use it. Very probably, your receiver is capable of driving those speakers to levels that will cause permanent damage to your hearing. Very often, however, such damage only shows up years later. (Just do an internet search on the subject if you are interested in information about this.)
Also, what destroys speakers is power, not distortion. Typically, though, when an amplifier is driven into clipping, it produces massive amounts of harmonic distortion (that is, multiples of the input frequencies). In virtually all cases, tweeters can handle far less power than woofers, so that when this happens, some of those multiples are sent to the tweeter, overloading it with more power than it can handle. Typically, if you listen to music that is not overly dynamic, you can turn up the volume until you start to hear distortion, and then turn it back down until you no longer hear it. That will be the maximum safe volume for your system (though it may not be safe for your hearing). Whether it is the amplifier or the speaker that is the limiting factor, though, will not be tested in that manner.
Frankly, if that Pioneer is driven so hard that it is distorting so much that it is blowing your tweeters, that is probably the least of your worries. You might want to start thinking about the hearing aid you are going to need in the future.