You are cementing pure marketing terms like FRFR and GRFR by assigning them to technologies.
We'll have unavoidably to deal with those terms... my post was meant to rationalise some aspects of things that, IME, create some confusion by many electric guitar players. I believe this is better that letting people use the terms with no consistency...
Anyway, the interpretation I am offering seems practical and "ordering" (so to speak) to me. Since, as we agree, there's no scientific background for this nomenclature, some may well disagree with it. But I find it rational nevertheless
Of course, as any "scientific" proposal, I am open to discussion
GRFR is on top of that. "Guitar Frequency Full Responce" does not make too much sense.
With the premise that the acronym would be Guitar Range - Flat response it does, actually IMO. A cab such as Red Sound's LG-12 uses a mid-woofer whose passing band is broader that most typical guitar-oriented ones, and - according to manufacturer - is more linear (whether this is true or not in the specific case is of course not important for the discussion). While a better and more accurate lettering would be Flatter Response, a mid-woofer reasonably flat in the guitar range (60-12k?) is what such designs are based on, and represents the real difference/novelty with respect to traditional guitar cabinets. A broader and flatter response than a guitar-oriented mid-woofer allows to profitably make use of cabinets IRs/profiles, which would not be properly rendered by a traditional solution. At the same time, the use of a speaker that's limited in band (Vs. say a 2-way cabinet) solves a number of issues for the final user (the electric guitar player), who most of times doesn't know hot to sculpture their tone in order for the model/profile to sound good, or seems anyway unsatisfied with the final result.
Eliminating the tweeter but using a broader-band, flatter response mid-woofer than a guitar-oriented one (finding a different compromise for the short blanket, so to speak) offers the modellers/profile users a solution that, AFAIK, was not previously available, and that has found its commercial reason in the crowd of those players who wanted to use their digital devices to their fullest (that is, properly rendering the IR/cab profile) but were unsatisfied by the way a linear ad transparent solution returned the tones.
Broadband means a speaker without tweeter. (Fullrange is an independent term)
Not all mid-woofers have the same passing band tho. So there are ones with a broader band than others, and certainly a 50-12k response is more functional to a modeller than a 60-9k, and - provided that there's a reasonable linearity - makes it sound better (meaning, more faithfully to the original modelled/profiled tone).
the radiation pattern of broadband speakers with whizzer cone (such as ours, or from RedSound) is not really different to existing two-way speakers that are marketed to guitarists
When I say that the Kone has a narrower diffusion pattern I am not comparing it with a guitar-oriented solution, but to a fully linear system. You yourself have confirmed that in several places, and it makes sense in the context of its design and purposes (for example here: «the guitar-speaker-like dispersion will make your cabinets appear different to a regular PA»).
Saying that de-facto there is no FRFR speaker out there shows the absurd aspect of this name and its false interpretation.
This is exactly what I am pointing out In order to get full linearity in the audio range, a two-way system is required as a minimum, because - and AFAIK - there's no single speaker able to cover the full audio range with a reasonable linearity.
That's why I specified that the term is commonly used in two ways, and that creates confusion.
"The Kone is no exception, and the fact it renders the CITR tone comes, among other things, from its limited band."
How do you get to this conclusion?
The comparison is with Celestion's 2-way coaxial speaker.
My point is that a limited band is one of the elements that make a guitar cabinet sound in its peculiar way, a way sought after by so many electric guitarists. Diffusion pattern being the same, a speaker with a limited band focuses its emission energy in the range the electric guitar player likes the most (they call it punch, or improperly moving air). When a speaker reproduces a larger acoustic band on a wider dispersion pattern, its sound progressively - and unavoidably - moves away from that peculiar combination of punch, sonic spectrum, directivity that the player has ended up associating to the term "amp in the room" and that they like so much.
I hope it's clear that I am appreciating the concept and the design behind the Kone. I am not at all bashing either
In order for the Kabinet to sound as it does, it had to be designed the way it has, and this makes the difference with other designs out there.