Why Aren't More Speaker Designers Building Augmented Widebanders?

The on-paper interrelated issues with widebanders is distortion (resonance), frequency deviation and dispersion. I don’t know Bache, but I do know Reference 3A and Horning Hybrid. Both lines use mechanically rolled of mid/woofer in to a tweeter that is connected to a capacitor. Subjectively I did not find either line to be a standard of mid-high frequency integration, although I like them both. The most coherent box speaker I know is Voxativ, although there is penalty with roll off over 10k as there is a widebander but not a separate tweeter. (The experience is well worth the rolloff, imo and probably the money as well). There are brands with more traditional crossover points like YG (1.75kHz), ATC (varies) and KEF (2.4kHz) that I think are extremely well executed. Vandersteen also does an awesome job in integration using quasi-widebanders with 1st order crossover with the tweeter point at 5kHz. The former three though have better dispersion, though. There is a lot of variety in execution, and it is fun to sample them. It would be cool if more companies like Reference 3a and Vandersteen would execute minimal crossover designs with carbon fiber drivers. 

 Speakers designers which try to use wideband drivers usually get some
mistakes .  First- to reduce distortion they shoud be works with
woofer with crosspoint about 500-700hz, integration with active bass
module become problematic and get issue ,  Active bass get crosspoint
up to 150-200 hz, and wideband driver get poor performance (buffel
step  ), Sound become is thin.  To integrate with tweeter  we  cut whizzer
cone ,I try to illuminate all this problem in my speakers line
 Greg Belman  Bacheaudio  ( Sorry for my English)

Eric_squires—true, the diy community has been doing FAST (Full range Assisted Subwoofer Technology) or WAW ( Wide band Assisted Woofer) for some time now. My diy 2-way has a woofer that crosses over at 535 Hz to a Tang Band Full range driver loaded into a tractrix waveguide.  The SQ is amazing and driver integration is seamless.  Many designs set the crossover frequency lower, usually close to the baffle step frequency.  One of the inherent challenges of these designs is the crossover component costs- you’re looking at huge inductors and caps crossing over that low—might explain why we don’t see more commercial designs.

Eric_squires—true, the diy community has been doing FAST (Full range Assisted Subwoofer Technology) or WAW ( Wide band Assisted Woofer) for some time now. My diy 2-way has a woofer that crosses over at 535 Hz to a Tang Band Full range driver loaded into a tractrix waveguide.  The SQ is amazing and driver integration is seamless.  Many designs set the crossover frequency lower, usually close to the baffle step frequency.  One of the inherent challenges of these designs is the crossover component costs- you’re looking at huge inductors and caps crossing over that low—might explain why we don’t see more commercial designs.

Gee...I wonder???? Henry Kloss had a classic quote "A Two way speaker is a good way to stay out of trouble" a no crossover speaker may be even better if well executed