Conceptually the JL xovers on their amps are top notch. Set a xover frequency. Set the slopes : 12db or 24db. Set the amp to use LP or HP from frequency set OR just run amp Full range. Set the preout to use LP or HP from frequency set OR just have preout full range.

Now the question : How accurate are these xovers? Are the slopes really 24 db when set so? Is the xover frequency close to what the dial says?

thanks
craig.