Help with my JBL L300 "fuzzy" in one speaker.
Does anyone have the speaker builder article they can send to me that details how to rebuild my L300 speakers? One speaker is very muddy sounding compared to the other. I think the 30 y/o crossover needs to be rebuilt. Any information anyone can send would be a huge help. I have owned these for almost 4 years and they are capable of making some great sound when they are working correctly. I could use some help here folks. :) I did reverse the amplifier leads to make certain it was the tube amp malfuntioning or the speakers. Sadly it is the one speakers sounding poorly. Do I access the crossover after I remove the 15" woofer? Thanks. If that is the case maybe I can remove the crossovers and then send them out to be rebuilt for me? After 30 years no doubt the capacitors are drying out. I would also like the speaker builder article to tune up the 2 tone controls on the front. Thanks for any help and advice! To my ears vintage and newer (like my JBL 4648a-8) are sleeper speakers. I also cobbled my Dad a 6' tall 2-way using the 4649a-8, JBL 2360A 31" x 31" biradial horns. I used a pair of tad td-4001 drivers in the jbl horns. My Dad's speakers are about the best I have heard. My Dad is severely hearing impaired. With these 2-way horn speakers he can hear female voices for the first time in 60 years. That made them worth the money to me for that alone. My cousin owns the top of the line B&W and my Dad's speakers sound better to my ears. Someday I want one the VERY large JBL pro version monitors to replace my L300. For now I just want the L300 back making good sounds in my apartment in Fall River, MA. I never overpowered the L300 and they have been babied by me. If anyone can scan and send the article to me my email address in [email protected] Be sure to remove the "nospam" from my email address before emailing me. Thanks for taking the time to read this! Best Regards, John Chleapas
RE L300 Speaker Sounds "bad"
John I'm also from MA (Pembroke) and just had my L200b speakers professionally rebuilt and upgraded with 2405 tweeters and 3106 crossovers making them quasi L300 only differing with the shorter horns on the LE85. Prior to the overhaul by Pro Sound (Braintree, MA) they sounded poorly with mismatched/wornout diaphrams and cones, also the LX200b crossovers were original and tired. As Audiobeer suggested I'd start with the least expensive items, the L pads, mine were well worn and were replaced. I have to say the speakers now sound spectacular and worth every dollar spent on the refurbishing which wasn't cheap. I can highly recommend Pro Sound, John the technician who worked on my speakers was terrific to deal with and is highly skilled. Re removing the crossovers you are correct you will have to remove the 15" woofers and also the foilcals which can be damaged if not done with care. You will have to heat them up with a heat gun or lamp and use something like a very thin puty knife to lift them off. I think you would be amazed with the sound of your L300 speakers if you had them overhauled. I followed the advice of the senior members of this board and the experts weren't wrong and I now have some beautiful sound to prove it. Someday I hope to hear a pair of L300s to see how close my L200bs with 2405 tweeters sound to the L300.
You like it when they are loud and big?
Hey there in Fall River! You got some "BIG GUNS" in your back yard! I'll bet when they "played" it was LOWUD!!!! You know what I'm talk'in about...
Big Mamie ain't kiddin' around when she shouts...