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.