Welcome to the foum Ender7.
If you're looking at that kind of budget, try and seek out a pair of Mission 751s secondhand. You'll find a good pair kicking round somewhere (if you're in the UK, there are some on Gumtree just now with original stands for £160 for instance). They'll probably outpace any of the above and plenty more. Just make sure it's the original model not the Freedom version. They'll work a treat with the NAD too and will withstand an upgrade when it's time to move the NAD on. They work well across all music genres too, from classical to rock/metal, jazz to classical and so on.