Jbl 4348

[hlaari]

Can someone help me help me
I am lookin for JBL 4348 lowfreq crossover network.



Regards
Ari Oskarsson

[Robh3606]

Here you go

Rob

http://www.audioheritage.org/vbullet...php?17053-4348

[hlaari]

Here you go

Rob

http://www.audioheritage.org/vbullet...php?17053-4348

Thanks for the information

I think at both coils are air coils 2.8 mh and 8.2 mh
the problem is I need someone to make the coils for my accurately the same like the orginal
I need pair of both



regards
Ari

[Robh3606]

I think at both coils are air coils 2.8 mh and 8.2 mh

No they are not. Take a look at the Tech Sheet. They are definately cored. Take a look at the ERSE coils they have very low DCR for there values and are readilly available.

Rob

http://manuals.harman.com/JBL/HOM/Te.../4348%20ts.pdf

[hlaari]

No they are not. Take a look at the Tech Sheet. They are definately cored. Take a look at the ERSE coils they have very low DCR for there values and are readilly available.

Rob

http://manuals.harman.com/JBL/HOM/Te.../4348%20ts.pdf

I find a pictures of the 4348 low network and I dont se any metal in the center of the both coil, they are not C-coil?



Regards
Ari

[hlaari]

Take a look at the ERSE coils they have very low DCR for there values and are readilly available.

Rob


I look on the ERSE homepage and ask them about the coils I need for the crossover, but they have not answer me.



Regards
Ari

[grumpy]

Schematic shows iron/laminate core, but the picture at the Japanese/Harman site
sure looks like air core

Wouldn't be the first time that a prototype photo -or- a schematic error
made it into publication... or a production change didn't match an old picture... or ...

I'd -think- a lower-loss inductor would make sense here, but I'm not about
to criticize whatever the designer intended. Might have to ask someone to pop
open their 4348 for you...