mixing old and new tweeters

[km67719]

Hi!

I own a pair of oa-14 speakers and would be able to get two Peerless ct-62 tweeters. Is there any idea to change for example two of the tweeters on one of the speakers or one in each? is there any change or can this distort the sound completely?
Additionally, can someone tell me the situation on getting a completely new tweeter to replace the old ones since the Peerless ct-62 is out of production and virtually impossible to find.

Many thanks for any advice!

-K