This week JBL sent me the HPL to audition and compare to the TAD , So i am setting up a high end rig with TAD B`s, `s. the HPL is a bare diaphragm on both sides. Attached Images I really don’t think JBL is spraying the aquaplas for their ego’s. The same. Used JBL HPL Loudspeakers for sale on + second hand hifi sites & shops. Use Hifi Shark to monitor pricing and global availability.

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Last Jump to page: Results 1 to 15 of Heres my observations between the two; BOTH have ferro fluid. Diaphragms do interchange mbl appear identical in every regard excepting that: A dusting of aquaplas I ‘spects. Don said in one of his posts that they had considered this but indicated they had abandoned it, as I recall.

I recall the Be I examined did not have ferrofluid. However, in frequency response tests at least, any performance differences were indiscernable: I’m really glad to hear all this ’cause I’m expecting my H drivers tomorrow!

Originally Posted by Zilch. However, in frequency response tests at least, any performance differences were indiscernable:. Keep to the path, Guido: Originally Posted by Guido.


Compresion driver shoot out. TAD vs JBL HPL – Wave Music Community Board

I think the aquaplas coating is highly audible and should result in a smoother sound. Anyway I do only guess here as I don’t have and drivers.

If the Be does not have ferrofluid, the larger back cap with fins would make sense for heat dissipation. In the same vein, and the rest of them x has Silpad on the face for thermal conductivity to metal horns.

Where plastic horns are used, JBL places a heat sink plate between the driver and the horn in some products. That’s not an aluminum block it bolts to on that, is it?

Nbl fins there, in any case Originally Posted by Mr. Let’s not forget that when a compression driver is crossed-over lower, say hz, there will be some sacrifice to the high end.

That diaphragm can only do so much till it says “no more”. The aquaplas coating does a fine job of smoothing out the distortion of the titanium Ferrofluid has some of the same effect at dampening the moving mass, albeit at the slight expense of sensitivity What can raise some eyebrows though, is why 2435hpll there a need to dampen a beryllium diaphragm?


JBL Professional 2435HPL Compression Driver Beryllium Diaphragm Neo Magnet

Originally Posted by edgewound. Talent, As for both drivers using ferofluids? I was under the impression that the Be is not supposed to have ferrofluids in the gap.

I assume you bought the Bes on the used market?

Perhaps the fluid was added? Have you done any listening comparisons? Originally Posted by norealtalent. Soon I will run a pair of those ragged cats eyes off a tube amp for some boost in the ultra highs. I want to re-fresh this thread as I own two Drivers now and think about aquaplasing or non-aquaplasing the diaphragms. The result is the Be, a 3-inch 76mm compression driver of pure cast-beryllium, capable of unequalled high-frequency response.

Together, the voice coil and diaphragm comprise a moving mass of just 0. What do you guys think? Similar Threads HPL vs. All times are GMT The time now is Extra Tabs by vBulletin Hispano.