These have a very harsh midrange. Unless you have a good 7-band or so EQ to tame the problem frequencies, I'd stay away from these. Yes, they do get pretty dang loud and the woofers can handle quite a bit of power, but you're going active so you have a huge selection of drivers. Spend an extra $30-40 and you'll be WAY happier. How many drivers do you plan on using, BTW?
To be honest, I haven't heard a whole bunch of different drivers. But this looks like a potential setup I would do and it's not overly pricey. The Peerless CSX line is a very solid choice from what I've read, and this particular Vifa tweet seems very nice. I'd probably rather get the tweeter from Madisound, but free shipping is hard to pass up.