Cool, didn’t know that about the adaptors. Beryllium is very rigid and lightweight, but it’s so dangerous and difficult to work with that it’ll set you back a pretty penny. As is usual with horn systems, there didn’t turn out to be a lot of wiggle room in where to cross things over. I bet it would be a dramatic improvement over the stock cone mid with lens setup. However I have not been able to notice that on the current system as I stand up and sit down, so I think this will be an acceptable tradeoff. Hi, Here is a link for further information.

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I started designing a new audio system for myself in All times are GMT What the Be will give you is lower distortion, less colouration, more clarity and detail, it isn’t necessarily a more extended response but it will be of a higher quality. Im usin the z Quote: Originally Posted by tamaracat so you are not using TD but Z instead.

Originally Posted by norealtalent. The polar response narrowed significantly and sensitivity dropped quickly although still fairly smoothly. Find all posts by soundmanshorty. The design is a dual ring radiator it’s two compression drivers on one throat and backplate reflections are all but eliminated.


JBL D8R2435 2435HPL Beryllium Diaphragm

Ferrofluid has some of the same effect at dampening the moving mass, albeit at the slight expense of sensitivity All times are GMT I’ll figure something out, no doubt. Here is the system as it currently sits.

You would not hear it in that video becuase the camera dose not move around the room. Diaphragms do interchange and appear identical in every regard excepting that: However, in frequency response tests at least, any performance differences were indiscernable: Beryllium is also expensive because it is a very complicated and toxic material to work with.

The result is the Be, a 3-inch 76mm compression driver of pure cast-beryllium, capable of unequalled high-frequency response. BMS drivers require much less energy than conventional diaphragms, allowing a much higher SPL, less dynamic compression, an increase in transient response, and lower harmonic distortion than traditional designs. Here are some ebay auctions going on- http: Heres my observations between the two; BOTH have ferro fluid.

The system looked like this: Talent, As for both drivers using ferofluids? So I replace it by a H and it was a lot better. And here are the parts glued together, but before sanding: I was under the impression that the Be is not supposed to have ferrofluids in the gap. Eventually I would like to upgrade both the midbass and subwoofer sections.


Keep to the path, Guido: How new is this driver? Send a private message to tamaracat.

JBL D8R HPL Beryllium Diaphragm – Speaker Exchange

A dusting of aquaplas I ‘spects. I want to re-fresh this thread as I own two Drivers now and think about aquaplasing or non-aquaplasing the diaphragms.

Hi, to answer your question yes a Be will drop into a But best of all, both when listening and when measuring, is the SL with a Truextent Be diaphragm. After moving to start a new job, I had a large jb of free time on my hands and used it to research, design and build a CNC wood router to use to build a pair of these midrange horns. At this point, the system was still mono as I hadn’t finished sanding the second horn and hadn’t built a second subwoofer yet.