I suppose it is time to defend my sterling reputation here. The EnABL process does in deed work across the full frequency band. Works on all driver types and permits the very qualities that Romy seems to appreciate in the treated Linneum tweeters.
The process controls the boundary layer, absolutely. Since the boundary layer of any emitter completely describes what can and cannot be emitted into the adjacent air, or water, to control it's spurious ringing, without deconstructing the coherent transient information in both micro and macro signals, is rather important. Since the boundary layer is amenable to lateral control mechanisms, being a carrier of lateral compression waves as they express into the adjacent medium over a period of time, a low mass diffraction grating at both ends of the membrane will perform a multitude of important functions.
The simulation of an infinite length between terminus edges. In this the energy density in the boundary layer, through the flat wave diffraction grating, is far greater than on either side of the grating. This forces energy that has passed through and is now at the edge of the membrane to exit the edge. This remaining energy will exit in phase and time coherence, with the energy already expanding into the adjacent air. Theoretically there are tiny diffraction artifacts from the grating blocks, back into the boundary layer, but they are extremely small in amplitude and have no chance to form a standing wave.
The elimination of null emitter bands within the boundary layer allows phase and time coherent emission into the surrounding air as the wave front crosses the emitter surface.
The amount of mass required to effect this control in a 6.5" mid/woofer is equivalent to writing your name, in script on an 8.5" X 11" piece of paper with a ball point ink pen. This relationship holds true regardless of the size of the emitter being processed. So, this is not a bulk mass damping system. It is instead a mass damping, of sorts, of the boundary layer, in the lateral plane only. Since the boundary layer is a very low mass high energy area, a small amount of mass, relative to the total emitter diaphragm mass, is all that is required for complete control of reflected energy that would otherwise form standing waves.
What has always fascinated me about this process is that it works on woofers, well below their natural piston point, so it even controls the emitted energy with wave lengths far greater than the dimensions between rows of the applied pattern.
What it removes is exactly what Romy is complaining of, the uncorrelatable sound that is left over as transient ringing, from the passage of a wave across an emitter surface. It also brings some other benefits but this is the most important one and a full range system controlled in this fashion does not emit ANY spurious information. Nor does it exhibit ANY colorations from the drivers. Nor does it have any "location" perceivable in a stereo spread. And last but not least, there are no limits to the resolution available.
I am aware that this sounds fishy, many others have made the same claims and then failed to perform. I welcome any audiophile, who cares to journey to the west coast, to come by and listen to a full range system treated in this fashion.
You can even poke and prod around, looking for the hidden alternate reality generators.
This is real and it does work.Bud