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/pro...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/vbull...8&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 !! 4348 new in summer 2002 !!!
The 4338 is new

[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, 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