Jbl m2 horn!

[iskesha]

Hi Dear Friends!
I need JBL M2 horns in any condition or at least one!
May be technical documentation for production!
I'm waiting for your message.
Many Thanks!
WITH GREAT RESPECT!
Iskander

[Don C]

The horns are protected by patent and cannot be reproduced.

[Mr. Widget]

The horns are protected by patent and cannot be reproduced.

Perhaps: Protected by a patent and shouldn't be stolen?


Widget

[ivica]

Perhaps: Protected by a patent and shouldn't be stolen?

Widget

Hi Mr.Widget,

What is patent protected, exact dimensions, curves, cross-section surface flare, diffraction slot shape, kind of driver connection (one of the worst design ever seen),
I can not imagine what kind of the mentioned can be protected, as almost any of the mentioned, is well known for decades.
I can imagine that exact replica can be protected, as a "kind of copy protection", but almost the same behavior can be get with some amount of dimension differences...

It would be nice if we can read somewhere what is the "point" while M2 horn surface walls have been calculated, not to mention the availability of the measurements data
of the horn acoustic impedance, real dispersion characteristics (using high resolution FR data, so possible internal reflections can be seen,...).
Most of the time marketing data are available.

Regards
Ivica

[iskesha]

OK!
I understood but I will look for them and when I will find I will help another!!!
I need the pair of JBL 2216nd also!
Have somebody these for sale?
Kind Regards!
iskesha

[Mr. Widget]

Hi Mr.Widget,

What is patent protected...?

Hell if I know. I'm not a patent attorney!


Widget

[Cyclotronguy]

Patents are intended to protect the consumer from fraud....... the maker, not so much. That being said the effort and expense to protect IP is upon the patent or trademark holder..... which is a polite way of saying that gray market goods sold to the un-informed eventually hits us all in the bill fold.

Cyclotronguy

[Ed Zeppeli]

I'd be willing to be that if you could make horns with the same response patterns but a different look you'd be good to go. But on the other hand if you took the 'cat's ass' out of them you may just take the cat's ass outta them, if catch my drift.

[Lee in Montreal]

Are D2 drivers now available?

http://jblpro.com/www/jbl-story/inno...2#.VY10xecVqf4

What else would you bolt on an M2 horn if it was designed specifically for the D2?

[Don C]

They were available for order for a while, and pretty cheap too. But apparently it was a mistake and you need a system serial number to order them now.
I'm going to try these 2452Hs.

[Lee in Montreal]

They were available for order for a while, and pretty cheap too. But apparently it was a mistake and you need a system serial number to order them now.
I'm going to try these 2452Hs.

Well. Two very different beasts. The D2 has two diaphragms and have a very, very wide frequency range.

[Don C]

Very diffenent beasts with the same bolt circle dimensions and throat size.

[Lee in Montreal]

Patents are intended to protect the consumer from fraud....... the maker, not so much. That being said the effort and expense to protect IP is upon the patent or trademark holder..... which is a polite way of saying that gray market goods sold to the un-informed eventually hits us all in the bill fold.

Cyclotronguy

I'd say it protects the engineer or industry more than it protects the consumer.

Lee

[dr_gallup]

I'd say it protects the engineer or industry more than it protects the consumer.

Lee

The whole idea of the patent system is to give the inventor legal protection against copying for the life of the patent, after that the intellectual property is in the public domain and anyone is free to copy.

If you want to do just a little work, the US Patent Office has a great searchable database. You can search by key words, company names, inventor names, dates and many other things. Takes a small amount of time to learn how to craft the queries but you can drill down through a mountain of data. For instance, here is a link to some of my patents.

[audiomagnate]

Used D2's are always available on that auction site for $980/pair. I've seen them on Craigs for as low as $700/pair. Big venues use them by the dozen in their overhead arrays. That's the real market for them.