recently replaced drivers in a pair of older infinity bookshelves with audax drivers.was wondering what an average time is before the tweeters 'warm up' they are very detailed,just a bit harsh.also,what kind of power needs to be applied.

i moved them to the rear because i don't like to be without my b&w's. so now i do most of my 2-ch listening in 'natural surround'(1050) to give them some 'airtime'.

btw they are titanium dome.
they will be used as mains in my buddy's system because they simply blow away the infinitys he bought new,but i got a deal on demos for him,so they are already broke in.