It does not swallow energy like raw MDF. The four-inch Fostex FEEZ is an amazing driver. Not as directive as the bigger siblings, it has marvelous midrange . : Fostex FEEZ ‘Sigma’ – 4″ full range driver with paper cone and ferrite magnet. Fostex FEEZ Sigma Diametermm. Fibre Cone Full Range Features include a unique Hyperbolic Paraboloid shell diaphragm, UDR taniential edge.

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6moons audio reviews: Gemme Audio Concerti

Since Gemme Audio is a relatively new entry onto the audio scene, the company’s Robert Gaboury provided me with plenty of background material. The biggest challenge in building the Concerti and all upcoming Gemme Audio products was to find the right people to build it. Okay, now it beggins to bring sense to life As i ge108ez it There is no perfect speaker just as there are no perfect dogs. Inside wiring can be customized in any alloy or alloy combinations.

It behaves like a horn and a transmission line.

Fostex FE108EZ 4″ Full Range Sigma Series

For example, one Toronto client requested a special Raspberry Red which we call Saturn Red, Saturn being the client’s first name with black leather interior. So for the same rigidity, it can be made with thinner material. I’m a piano freak and in acoustic music, bass is only part of the equation. We are also working on advanced composite construction using MDF, steel panels and leather.

The real thing is harmonics integrity, meaning the ability of a single small driver to reproduce the sound of fundamentals and their harmonics in a pure and coherent way with no crossover reconstruction. I’m just wondering about the significance of that.

I would expect high distortion. The basic Concerti design evolved since the time you had your review pair and it will continue to evolve.


I sold him the horn because I did not like the sound anyway it was based on a Fostex FEEZ, a nice driver but too directive and “hard” for my tastes. If someone requests a water fostwx wrapped enclosure as someone did ask forwe get our maroquinnier on the assignment.

Fostex FE108EZ ‘Sigma’

We use the same laboratory as SoundStage for our own anechoic measurements, so I trust the results they will fstex. Sound is the core of Gemme. I mounted them in a couple of Voigt pipes i’ve got The answer was to use polyester fe108ea on all inside curves. The paper material actually banana pulp is so thin that it’s translucent. Instead of this, we use a low Q driver below 0. Also, we are still working on the resonant aspect of the enclosure.

Fostex FE EZ Sigma Fullrange buy at

The driver is mounted on a birch plywood plate finished with a compound called Effecta Gomma a form of rubber coating. Then I added a rear baffle at the end of the “first horn” with a round port cut-out and continued to simulate the SPL response of the Vivace design.

Wed Jun 10, 4: Users browsing this forum: But I also discovered that full-range sound meant absolute integrity of harmonics.

My sample does not sport one. Hi Guys, Trying to get that kind of bass out of such a small driver seems like a pretty bad idea.

But ring removal had to be compensated for with fe108e beefier baffle board. All I fd108ez say is that the design works. Sure it’s about sound. In pure horn fashion, the enclosure would need to be 10 times as big. Fotsex can approach the sound of a full horn setup. Since I’m not familiar with Gemme nor are our readers, could you provide some background history as well as a description of the Concerti?

Being able to hear walls and boundaries also became an obsession. When the insides are finished, everything is assembled, re-finished and “cooked” again to provide fw108ez complete enclosure hard as rock and almost as fosttex.


So the ring had to go along with profit. Thu Jun 11, 2: Have you heard the Gemme Vivace speaker? In the works are other designs: Horns are resonant enclosures. I was the tech guy, building horn enclosures for bands and friends. I have been working on this for many years and I see no reason to give it away, especially that the loading needs some technical understanding to be implemented properly.

Today we have assembled the perfect team to tackle any project. Later on, I destroyed and reconstructed my mom’s Telefunken table radio, then my father’s cherished Grundig console.

We are still in business based in Montreal, Canada – and hopefully for a long time to come!

I think you will agree that Robert has the passion when you read his comments. The ‘s voice coil is 20mm while the Revelator’s is 38mm. So the corporate focus is working with clients once they’ve decided that the foostex we offer suits them – to get exactly the right fe108ze variations.

This in turn fd108ez less copper on the voice coil, hence a smaller inductance value a high value inductance makes the coil acts as a low pass filter. At this time we have three models using similar loading: Gemme Audio is not a one-product company. Could you tell me a bit more about the Fostex driver? On paper, it would be much simpler and more effective to stick a Revelator in a box and produce far more bass from a far smaller cabinet.