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JBL L-300 Summit Are they still any good?

I just picked up a pair of JBL L-300 Summits.
I am looking for some information on the L pads and crossovers. I’m looking for some input on where I could possibly pick up the correct L pads. Any positive feedback would be welcomed
iconicaudio
iconicaudio OP
35 posts
 
Thanks for the response. I removed one today pulled them apart and cleaned them thoroughly with Deoxit D5. Definitely a huge improvement. Tomorrow the other one comes apart. Definitely going to recap the crossovers. I’m not quite sure what caps I’m going to use. I want to keep the same values.

The Hegel 590 seems to drive them pretty well.
russ69's avatar
russ69
3,514 posts
 
Clean them up and turn them up! 
iconicaudio OP
35 posts
 
I definitely will once I get the other L pads cleaned up.
great care is being taken not to damage the consecutive serial number foil cals. With all the L 100s I’ve restored I definitely have it down to a science.
johnlcnm
45 posts
 
Actually, there is a lot you can do with the L300. They can be restored to sound like they did when new. The diaphragms in the midrange and tweeter can be replaced if necessary, although the tweeter diaphragms are no longer manufactured by JBL. Radian manufactures an excellent replacement for the mids. The tweeter phram may take some time to source, as most folks don't recommend the Chicom replacements. Nelson Pass designed a replacement crossover that eliminates the inductor/autoformers. Search for his article on the internet.  
iconicaudio OP
35 posts
 
Thanks for the information. Do you know how I can find the new replacement diaphragms ?
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