PDA

View Full Version : 4301



Wagner
06-02-2009, 09:31 AM
Hi,
What were the drivers used in this box, please? I've searched and looked at the master listing of tech sheets and cannot find this particular little monitor.
Thomas

grumpy
06-02-2009, 09:35 AM
4301 - 116a. Le25-2
4301b - 116h. Le26

http://www.jblpro.com/search_23.htm

Wagner
06-02-2009, 09:49 AM
4301 - 116a. Le25-2
4301b - 116h. Le26

http://www.jblpro.com/search_23.htm

Thank you!
Easy way to identify the woofer variants in pictures? Like voice coil clocking?
I'm looking at these on-line and the seller is worthless as far as information is concerned. Probably a yard sale find for him.
One version preferable over the other?
Thanks again for all your help.
Thomas

grumpy
06-02-2009, 10:21 AM
easy to tell woofer by looking at the magnet structure (and the stamped part # :))
... no so easy when mounted.

Le25-2 vs Le26 is easier, Le26 having a hard/raised area around the tweeter
cone, where the Le25's have open cell foam (earlier models) or something that
looks/feels like neoprene (later models).

Foil cal on baffle should show 4301 or 4301B, as well as grill tag (if still present).
4301 (I think) was black-baffled, vs blue for the 4301B ... at least the walnut-finished
cabinet 4301B's were blue-faced.

http://www.lansingheritage.org/images/jbl/catalogs/1978-pro/page02.jpg
http://www.lansingheritage.org/images/jbl/catalogs/1982-pro/page05.jpg

there's a powered variant as well that has screw terminal inputs instead of spring
loaded push terminals (if I'm recalling correctly). 4301E/4301BE ... E for Energized.

Wagner
06-02-2009, 03:36 PM
easy to tell woofer by looking at the magnet structure (and the stamped part # :))
... no so easy when mounted.

Le25-2 vs Le26 is easier, Le26 having a hard/raised area around the tweeter
cone, where the Le25's have open cell foam (earlier models) or something that
looks/feels like neoprene (later models).

Foil cal on baffle should show 4301 or 4301B, as well as grill tag (if still present).
4301 (I think) was black-baffled, vs blue for the 4301B ... at least the walnut-finished
cabinet 4301B's were blue-faced.

http://www.lansingheritage.org/images/jbl/catalogs/1978-pro/page02.jpg
http://www.lansingheritage.org/images/jbl/catalogs/1982-pro/page05.jpg

there's a powered variant as well that has screw terminal inputs instead of spring
loaded push terminals (if I'm recalling correctly). 4301E/4301BE ... E for Energized.


Thank you so much for sharing your work product so open handedly.
Hopefully I can reciprocate the courtesy, in some fashion, eventually.
Sincere regards
Thomas

Punch
06-02-2009, 04:53 PM
My first JBL speaker, and I love 'em. I bought them used from a buddy back in 1982 or 1983.

I just the drivers off to Orange County to have them re-edged...116-A.

Good Luck...

I was wondering how close they were, tonally, to the L-26 since they look so similar. I have never listened to the L-26.