They work. I use Aurum Cantus ribbons with custom foils, but I use an active crossover and a separate amp. I think the issues are speed, dispersion and harmonics. Even if your speakers have response past 20Khz, are they really really fast above 10KhZ, and do they project that spectrum with extremely high energy and dispersion? Most diaphragms just are not fast enough, and you can hear the speed limitations.
The supertweeters add illumination and detail to the imaging.
You may not be aware of it until your turn them off and notice some of the light go out of the stage. Of course, the source matters, vinyl benefits most, but Redbook and digital can also benefit.
The supertweeters add illumination and detail to the imaging.
You may not be aware of it until your turn them off and notice some of the light go out of the stage. Of course, the source matters, vinyl benefits most, but Redbook and digital can also benefit.