New 4348 Monitor!

[Ken Pachkowsky]

These look damned interesting!

[Ken Pachkowsky]

Specifications:

Type 4-way floor type
Units used
38 cm pure pulp cone woofer 1500FE
25 cm fiber composite cone/mid-range transducer 2251J-1
75 mm aluminum compression driver 435AI
25 mm pure titanium compression driver 045Ti
Impedance 6 Ω
Allowable input 400 W (RMS)
Output sound pressure
level
95 dB (2.83 V/1m)
Frequency response 33 Hz – 40 KHz (-6 dB)
Crossover frequencies 300 Hz, 1 kHz, 10 kHz
Dimensions (W x H x D) 597 x 1080 x 400 mm (with grill 425 mm)
Weight 90.4 kg

[Ken Pachkowsky]

http://www.jbl.com/home/products/product_detail.asp?ProdId=000000000000004348&CheckProduct=Y

[speakerdave]

Hi, Ken,

There are earlier threads devoted to this speaker, which, I agree with you, looks very promising.

Here's one:

http://audioheritage.csdco.com/vbulletin/showthread.php?s=&threadid=2545&perpage=15&highlight=4348&pagenumber=1

David

[johnaec]

So has the actual availability of this speaker in the U.S. ever been determined?

John

[speakerdave]

Not by me. I'm disinclined to pester anybody about it when I know I'm very unlikely to spring for them, but it might be possible to approximate them. I think Giskard said the horn, which is also used in some other speakers, is available and so is the cone bass/mid driver. I think one could use the 2430 on the mid horn. One could have a choice of woofers, the best candidates I think would be the 1500Al and the 1400nd. That leaves the tweeter, but I think the 53tis and wave guide from the LSR line would be worth a try.

Then there's the crossover . . . oh yes, the crossover. I don't know if the circuit for the 4348 has been published, but it might be possible to piece together a starting point from other sources, depending on the driver selection.

David

[Ken Pachkowsky]

The model numbers are listed above in the second post

[Don McRitchie]

Originally posted by johnaec
So has the actual availability of this speaker in the U.S. ever been determined?

John

Unfortunately, it's Asia only.

[herve M]

Ohé Ken, it's no new !! :D 4348 new in summer 2002 !!!
The 4338 is new:p

[Zilch]

Don: Are these the models we wouldn't like the "voicing?"

Also, is the 4425 MKII in that class?

[Ken Pachkowsky]

My wife said I was always a little slow...

[Ken Pachkowsky]

These are listed on the North American Site in English!

Maybe they are going to become available here? I see no reason to list them on the NA site unless that is the case?

Ken

[4313B]

All the parts/components are listed on the latest price sheet (but most are currently out of stock) so they might be available if someone really wants a pair.

[Jan Daugaard]

In May 2003, I found the technical manual for the 4348 somewhere on the Internet, giving the details of i.a. the cross-over circuitry.

Send me a PM with your e-mail address if you would like to have a copy of the PDF file.

[Earl K]

"JPGs" of the S4800 schematic have been posted HERE (http://audioheritage.csdco.com/vbulletin/showthread.php?s=&threadid=2106&highlight=4348), on this site.

I would agree that pdf files are more "portable" for filing purposes.

<. Earl K:)

EDIT: The above link goes to the S4800 schematic instead of a 4348, as I originally thought
My Bad !

Some other interesting pics of the internals of a 4348 from speakerdave in this other 4348 thread (http://audioheritage.csdco.com/vbulletin/showthread.php?s=&threadid=2545&perpage=15&highlight=4348&pagenumber=1)

[speakerdave]

That's for the 4800, a three way using some of the same drivers. Still interesting and helpful.

David

[4313B]

Yeah I posted the 4348 at some point awhile back and also sent the pdf to a few people. The pdf's are often too large to post "as is" but can sometimes be manipulated smaller. Anyway, here's the jpegs. If you don't like them, don't save them to disk. :)

4348_Page_1.jpg

[4313B]

4348_Page_2.jpg

[4313B]

4348_Page_3.jpg

[herve M]

Originally posted by Giskard
All the parts/components are listed on the latest price sheet (but most are currently out of stock) so they might be available if someone really wants a pair.

:) Ok, Giskard, I would the HF horn, UHF horn and UHF driver. Thank you for avance.
REGARDS Hervé

[herve M]

Yes, my system is incomplete. However, I have new blue paint.

[Robh3606]

Hello Herve

Nice looking system you have there!!! What horn are you using up top ??

Rob:)

[herve M]

hello rob, is the ancient thread:
http://www.audioheritage.org/vbulletin/showthread.php?threadid=40&highlight=new+project+studio

the horn is 2332 aluminium. I have network modified. ( 4348 for HF without L4 c15 c17 and r24):)

[johnaec]

Do you have the 2430 driving the 2332? How do you like that combination?

John

[herve M]

Combination 2332+2430 does not descend enough to my taste compared to 2344+2426. With network schem.HF4348, the medium is clean, Net, acute the quite present ones but the low-medium is attenuated. Is the house of the 4348 perhaps ascending?

[oldbrowndog]

Well i have a pair of these i just bought locally in Sydney Australia, and to my dismay one of the 435AI horns is not working. pics attached of the good, the bad & the ugly truth.
Not easy to source a replacement I imagine?
Will need to chat with the seller and figure out a plan of action.
Any advice from JBL pro's on best way forward appreciated. Im in Melbourne Australia.

89228
89229