Originally Posted by mtbdudex
So are you saying that there are no 3rd party testing to share?
Yes...and I know that is strange for some to accept, but the emphasis on distribution has be within Commercial Industry and Military applications, and the attributes of the Transducer has been / is well known and accepted in the Educational & Artistic communities for many years. when the most recent version was released, one that was / is 4x more proficient than the former, it didn't take much convincing within those fields to accept it "as is".
As for using within the A/V realm, such is / has always been limited to specific trained Dealer/Installers, with no direct sales allowed, for just the sort of reasoning you might expect....the Mfg and myself do not want improper installation...or the issues that result from "Sellers" making the product seem to be something that youy just stick on the wall or a window and have at it.
As such, showing it in action in actual, properly installed applications is the primary way to exhibit / test the Transducer. Trade Shows, Home Shows, or direct demonstrations get that accomplished...with the expected "OMG" results that do all the convincing.
Or, there is but the readings do not match what you claim the ears hear?
Also - explain how "db levels are high", yet SPL are lower? Please post the charts that back up these statements, I'd like to "grok
You realize what happened to the "Stranger in a Strange Land" right? He got a little too "Grok'ed"
People were just not ready to accept what he had to offer them...or at least failed to understand.
I have often felt that way myself when explaining the Transducer to those who could not accept the possibilities inherent in the unit. Instead, I simply let the "Jaw drop" syndrome do all the convincing...."IF" I could arrange for a decent demonstration.
But consider this "layman's" explanation.
Conventional Speakers produce sound by first resonating a diaphragm of some type, and with the resulting "push/pull action of the voice coil, pump those frequencies into the environment, resulting in both db and SPL production.
A surface that has a Transducer mounted behind it resonates a 360 degree, 1/2 hemisphere of dispersion...up to 8' in diameter, with every frequency radiating outward from center to it's specific point where the wave length can saturate that given point, making it accurately resonate. Highs only travel a short distant before doing such...each to a specific point, Mid-range travel further, and Bass the furthest. This is exactly what / how any full range speaker works, and it's pretty much accepted that a 10" full range speaker does a better job than a 5"er because of it's larger diaphragm area, and the obviously larger enclosure most such drivers would have if not a "Free Air" installation.
But there the differences between such "Air Motion Drivers" and Audio Transducers come into play.
The existent air pressure of a room lying against the surface a Transducer is mounted absorbs and propagates the resonant energy on the surface of the structural solid, outward into the room, air molecule to air molecule, in a cascade effect....furthering the omnidirectional dispersion. The wall does not move / travel back & forth. Instead, the Transducer itself moves very slightly within the wall / opposite side, and does so in conjunction with the amount of travel of the voice coil within the Magnet Structure / Gap.
this is why effective volume can be obtained without nearly the amount of SPL production a normal speaker produces. It is that property in and of itself that makes a Transducer system far less susceptible to acoustic concerns resulting from SPLs / and standing wave interference.
Oh....absolutely some degree of SPLs are produced, but they are markedly lower than the db levels would seem to indicate they should be. That is why at first, to many who are used to how convention speakers sound, the sound seems somehow "different" to them. Much the same as is experienced with Electrostatic Panels.
All of the above is why the Transducer is the most accepted device for sound masking applications Industry-wide. You cannot absorb frequencies into a solid if the energy of the incoming frequency does not match or exceed the level of resonant energy inherent within the material, or exceed the naturally suppressive properties of said material. And if the frequency of the surface is tuned to an appropriate level (...w/ White or Pink noise...) the surface can...and will effectively cancel out reflections, deadening the surface's absorption / reflective properties.
That is about the extent I care to delve into the subject on Cowger's thread, as I do not want the subject to become a primary focus. But I'm sure both Cowger and RedTopDown will confirm what I've related, so therein is you "Independent testing" examples....real world as it were.
But let me add this. The dearth of 3rd party Testing is really more a result of years of disinterest by those who fixate on conventional speakers, combined by the inability to test the Transducers in the many different varieties of applications it can potentially cover. The Transducer ain't a "One Trick Pony"....but just the same, it's not the "End All' in audio reproduction either, nor is it ever going to be acceptable to those who pursue and value sheer Volume / SPL production above all else.
But that's OK....let 'em regress into needing hearing aids. I myself suffer from hearing loss that comes from the excessive volume I allowed myself to suffer, from just 4-5 years involvement in the Pro Sound Reinforcement industry building and testing Live Concert PA and Discotheque systems that could...and did make my ears ring for days. Excessive use of Headphones during Mixing only worsened my loss.