Is there a recone kit for the K2 475nd horn driver?

[Niklas Nord]

Okay, but WHERE at JBL should i turn to to seek advice
regarding this issue? maybe there os some kind of upgrade,
or some other diaphragm that suits my needs..

Is there some mail adress to JBL where i can write and ask?

Earl, what is the name of the diaphragm that you think is the correct one for the 475nd ?

[4313B]

"Okay, but WHERE at JBL should i turn to to seek advice
regarding this issue?"

What issue? The 475ND has always used the D8R475ND. Order a new pair of D8R475ND's, have them installed at your favorite Authorized JBL Service Center and enjoy the loudspeakers or dump them on eBay.

"I have heard that there is TWO kind of diaphragms,
one for the japaneese market wich has some kind of
black damping material on, so the K2 will roll off earlier
in the higher octaves..

THEN there is the kind that I have, a diaphragm without this
damping material..."

The designer of the S9500 has never heard any such rumor.

"Is there some mail adress to JBL where i can write and ask?"

http://www.jbl.com/home/product_supp...S9500%20-%20K2

[Earl K]

Niklas

First;
Giskard posted the "correct" part number in the second posting of this thread. That is the replacement diaphragm you should seek out .

Next;
You should consider registering your purchase with Harman. Go to Harman Product Support for the S9500 and follow the appropriate links. At the bottom of the page, there is a link for contacting Harman. This page has all the info you should need as an International Owner of a S9500.

Finally;
I would think ( arguably ) that the S9800 is the only "upgrade" to your S9500 .

regards ,> Earl K

( maybe I'll delete this redudant posting later )

[Niklas Nord]

Thank you all.
Please keep in mind that I´m trying to understand your language
also, also trying to respond correcly.

maybe you think I´m a little bit dizzy


I hope you can overlook that

[4313B]

Originally posted by Niklas Nord
Thank you all.
Please keep in mind that I´m trying to understand your language
also, also trying to respond correcly.

maybe you think I´m a little bit dizzy

Not really, I'm just confused as to why you would find a non-475ND diaphragm in a 475ND. It "sounds" like someone was monkeying around with your system. In their infinite wisdom they probably thought they were performing an "upgrade".

I've replaced my scathing response to that possibility with the following in order to keep from being permanently banned from this site.

[Niklas Nord]

I have been told, that the first owner of the K2 replaced the membrane with some other membrane, due to an upgrade recommended by the swedish JBL retailers. The seccond owner told me this, i have no idea. it will be interesting to find out when i open it up..

The seccond owner saw the old membrane, the first one (original), that was all black and apperantly due to the swedish JBL retailers, was a membrane for the Japaneese market JUST becouse in japan they liked the topp to roll of earlier..

I dont know, I´m just asking you at this forum, pleae dont get MAD at me.

[4313B]

I'm not "MAD" at you at all. It's good that you can get hold of the past owners to get the scoop on what was done. Perhaps you can obtain those original diaphragms somehow. It would be nice for you to be able to hear the system as originally designed. I realize JBL is pretty stupid and has no real concept about how to build loudspeakers but you should be the one to decide which diaphragm to use in your S9500's, not a Swedish retailer, or a previous owner.

I guess the bottom line is that you aren't satisfied with the sound from these loudspeakers in their present state? Something must not be quite right?

[Niklas Nord]

i can hear some kind of "rattle" in the horn, both of them..
but only on certain records..

[boputnam]

Originally posted by Niklas Nord
i can hear some kind of "rattle" in the horn, both of them..
but only on certain records..

I'm not mad either - only plenty goofy... ...

That "rattle" suggests (to me...) either:

1) those (wrong) replacement diaphragms don't fit correctly.
2) the brackets supporting the driver (if there are any...) are loose / need tightening.

I'd bet you don't mean "only on certain records", but really mean "only at certain frequencies". You should sweep these and report where how the "rattle" occurs.

Scratch that. You should "Order a new pair of D8R475ND's" and get 'em installed, and my grab is that rattle will

[Niklas Nord]

You know Kraftwerk, on the new CD called "Tour de France", there is some elektronic sounds that are rather "broad", a large
frequency-span.. some tracks on this record, makes the horn
sound bad, and I´m not playing THAT loud..

[Niklas Nord]

here is a picture of the diaphragm
http://www.lansingheritage.org/image...500/page04.jpg

I dont know if my look like that

[Maron Horonzakz]

NORD....... It would be nice if we had a sweep frecuency chart on your PRESENT DIAPHRAM to compare to original 475 diaphram. This would show what high frequency roll off the JAPANESE are supposed to like. If you saw these charts plus HEARD the compareison you then could judge on witch you prefer. On the one diaphram thats giving you trouble it might need shims to place it a tad further away from phaze plug.

[Niklas Nord]

The document also says

475nd 16ohm

hmmm