Noel,
Kamusta ka ser? Long time! Have a possible project for you. Acquired a mint vintage speaker from abroad, arriving in 3 weeks pa. I've read in a few other forums that updating / upgrading the crossovercaps is a definite improvement, especially with these models.
Check out the xover :http://manuals.harman.com/JBL/HOM/Technical%20Sheet/L300%20Summit%20ts.pdf
Questions:
1. need more info?
2. if no, do you think you can service?
3. if yes could you give me 3 pricing options?
4. speakers huge and heavy, can the work be done in my home?
TIA
cheers
raffy