Quote Originally Posted by Mike^S View Post
Hi Dave, is the improvements in frequency response due solely to the new tweeter and crossover?
Yes. The new tweeter allows us to do a few things differently in the crossover, including more precise control of the high-pass filter slope which allows for improved phase integration with the woofer (the stock Sierra-1 already has excellent phase integration but the NrT is even better).

Quote Originally Posted by Mike^S View Post
I remember we discussed once how the diffraction off the edge of the cabinet caused some deviations in the FR. So the new tweeter and crossover was able to compensate for that? If so, that's pretty cool!
This is now compensated for in the new crossover... I will post the frequency response measurement sometime this weekend.