Given your search for a neutral and transparent sound, and your budget, I would consider Proac K series speakers. Very open with exceptional midrange refinement and transparency for the price. The new ribbon tweeters also add some beautiful extension on top. Dynamic, refined and well-organized sound with excellent palpability.
If it’s not a typo, I read 1000 watts :) That kind of power would also call for Magnapans for sure, if you are not a bass fanatic. You would in this case limit your system versatility a little bit. Proacs for example would rock the house while Maggies would probably feel happier with jazz and acoustic folk etc…
Let us know what you end up with please. I am curious. Thanks