Active crossover, flat frequency response and reduced distortion.

Hi there guys. I finally made my active cross over into an open source product. The design chosen ensures a flat total system response, reduced distortion at the cross over frequency, and minimizes the requirement for high tolerance parts.

Please have a look and tell me what you think.
Good or bad.
www.opend.co.za/hardware/activeXO/index.html

Thanks
Murray.