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    mirrored tweeter pair or not?

    I'm looking to buy a pair of vintage JBL C-series speakers from the 1950s, with the bass and tweeter 2-way configuration.
    So help me choose between the two speaker units.
    Now, one of them has a...
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    Alright, thanks for your thoughtful feedback.

    Alright, thanks for your thoughtful feedback.
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    Thanks for your comment. Actually that bothers...

    Thanks for your comment. Actually that bothers me.
    My C56 or L101 is a 8-ohm speaker, with LX10 network and 1.5khz crossover, so I'm thinking twice about buying this 16 ohm woofer.
    By the way, I...
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    It's 5.8 and 6.1, so it's similar to 8hm LE14A,...

    It's 5.8 and 6.1, so it's similar to 8hm LE14A, right?
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    Thanks for your reply. It's 5.8 and 6.1,...

    Thanks for your reply.
    It's 5.8 and 6.1, according to the seller.
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    The seller just informed me that its DCR read 5.8...

    The seller just informed me that its DCR read 5.8 and 6.1, respectively.
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    Thanks a lot for your kind replies. Here is the...

    Thanks a lot for your kind replies.
    Here is the link to the Ebay listings on this:

    https://www.ebay.com/itm/144346589822

    https://www.ebay.com/itm/284420302686

    The pictures show they are...
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    16ohm vs 8ohm woofers?

    I have an eye on LE14A woofers with new surrounds on auction sites, which are 16ohm, though.
    Currently my C56 or L101 speakers are equipped with 8ohm LE14A.
    Is it okay to use 16ohm LE14A instead...
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    Removal of the tweeter

    Hi
    I need to take out this tweeter (LE175DLH) from C56 Dorian. Unscrewing is easy, but it's hard to remove it from the cabinet even after unscrewing the bolts in and outside.
    Any good idea to take...
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    cleaning networks?

    I've C56 speakers in good working condition.
    Upon close listening, however, the left speaker is a bit cleaner and louder than the right one.
    I wonder if I can expect the same tone when I clean this...
  11. Thread: speaker hum

    by pyonc
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    Hi, glad to hear from you. Actually I don't...

    Hi, glad to hear from you.
    Actually I don't hear any hum or noise from the amp itself.
  12. Thread: speaker hum

    by pyonc
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    Thanks for your kind reply. With no input, just...

    Thanks for your kind reply.
    With no input, just MC 30 & speakers:
    With GAIN button all the way down, I hear a little, but still audible hum.
    Clearly it's loud60 hz hum.
    Looks like I take it to...
  13. Thread: speaker hum

    by pyonc
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    speaker hum

    Currently McIntosh MC30 mono block hooked on to JBL Olympus, with McIntosh C22 (just serviced).
    Now, I hear audible hum from one of the speakers. 60Hz, I think.
    As this is the tube preamp, I...
  14. Thread: audible pop

    by pyonc
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    audible pop

    I currently listen to JBL Olympus with McIntosh MC240 as the power and McIntosh C22 as the tube preamp.
    Now, all good except for the audible pop through the speakers when I turn off the power amp,...
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    LE 25-2 damper ring

    Hi,
    4311 studio monitors and other vintage JBL models have LE25-2 tweeters with damper rings.
    By now they're worn out like that you see in the pic.
    Now, I've a question:
    Does it have any effect...
  16. Thread: Any opinion?

    by pyonc
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    Interesting. Do you have the pic of that PR10...

    Interesting. Do you have the pic of that PR10 with the cut-out spider?
  17. Thread: Any opinion?

    by pyonc
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    Thanks for your feedback. I have the very early...

    Thanks for your feedback.
    I have the very early 1964 model of C54 Trimline with LE8-1 (later LE8T), and this early PR8.
    No spider cut like that on this PR. And I googled on this to check if there...
  18. Thread: Any opinion?

    by pyonc
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    Thanks so much, Widget! I agree with you. So,...

    Thanks so much, Widget! I agree with you.
    So, there is no possibility of JBL producing such a PR8 with the cut spider, right?
  19. Thread: Any opinion?

    by pyonc
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    Any opinion?

    Here are two pics of JBL PR8, passive radiator of early version of LE8T.
    One on the top is intact, and the other one looks like broken or split (?).
    Is this split thing okay? Any effect on the...
  20. Thread: 8ohm vs 16ohm

    by pyonc
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    Thanks a lot, grumpy and Eark K for your valuable...

    Thanks a lot, grumpy and Eark K for your valuable comments!:applaud:
    By the way, my C54 is a very early one, but its LE8-1 (not LE8T) is 8ohm, not 16 ohm.
  21. Thread: 8ohm vs 16ohm

    by pyonc
    Replies
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    Got it. But the thing is the 8 ohm power amp. If...

    Got it. But the thing is the 8 ohm power amp. If I use this 16ohm driver speaker with this 8 ohm speaker, don't you think it affects the volume, given the difference of ohm? I think I read it...
  22. Thread: 8ohm vs 16ohm

    by pyonc
    Replies
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    9,571

    8ohm vs 16ohm

    Hi friends,

    I've got a vintage C54 trimline, with the 8ohm LE8T full-range driver, with no network.
    I'm thinking of replacing it with 16 ohm driver. And any sonic benefit?
    Thanks for your...
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    Thanks for your detailed and kind explanation and...

    Thanks for your detailed and kind explanation and sharing your observation. Actually I'm shopping at the moment.
    As I have McIntosh MC240 to drive C50 Olympus, I've been looking for its right tube...
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    tube preamp for JBL vintage speakers

    What do you think is the best tube preamp for JBL Olympus?
    I'm thinking of Mcintosh C20 or Audio Research SP8.
    Any other vintage tube preamp recommendation?
    Any opinion appreciated. Thanks.
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    Thanks a lot for your kind and considerate...

    Thanks a lot for your kind and considerate feedback. Looks like this is a challenging task unless I find the same part of the same preamp unit.
    Actually, with the loudness switch off, the volume...
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