You can do much better for alot less money. That's basically a stock crossover with slightly upgraded parts. If you can DIY you need to got to the Magnepan users group(MUG) at Audio Asylum and ask around.
Skiing Ninja Magnepan 1.6 xover upgrade
Any Maggie owners here given these a try?
http://www.skiingninja.com/Magnepan-1-6-Ninja-Noble-p/mag16nn.htm
http://www.skiingninja.com/Magnepan-1-6-Ninja-Noble-p/mag16nn.htm