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Thread: Is this old speaker even remotely desireable?

  1. #1
    Forum Member NeoFauve's Avatar
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    Is this old speaker even remotely desireable?

    15" Jensen
    C15PS - C8128 3
    220718 - Stamped on the frame
    3015B11W - stamped on cone

    Just curious.

    Also, any way of knowing how many W it's rated for?

    Thanx.
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  2. #2
    Forum Member Kap'n's Avatar
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    Re: Is this old speaker even remotely desireable?

    Yes it's worth some cash. It's between an N and a Q in power rating. 20 watts, probably, when new.

    Probably be nice in a Tweed Pro, or an Ampeg Geminii.
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  3. #3
    Forum Member NeoFauve's Avatar
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    Re: Is this old speaker even remotely desireable?

    It's in my Univox amp.
    When I had it fixed up, the tech asked me if I wanted to go ahead and fix the amp for what he was quoting, the other possibility being- sell the speaker for more than I paid for the whole amp.

    I noticed one (not sure if it was truly the same one) on the bay that went for like $50.
    Less than 1/2 what I paid for the amp.

    I was toying with sticking the Jensen in my Delta Blues.
    But at 20W, maybe not.
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    Forum Member Guitar_Mc's Avatar
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    Re: Is this old speaker even remotely desireable?

    Could you put it in the Delta Blues, and pull 2 of the power tubes?
    (it has 4 EL84s right?)
    Might have an impedence mismatch, but it might work.

  5. #5
    Forum Member NeoFauve's Avatar
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    Re: Is this old speaker even remotely desireable?

    I dunno?

    Would that drop the power to some sub-20W/safe level?

    I was just doin' a little thinnin', is all...

    in which case, it's probably good that I ask around first.
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  6. #6
    Forum Member Guitar_Mc's Avatar
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    Re: Is this old speaker even remotely desireable?

    What is the impedence of the speaker in the Peavy?
    What is the impedence of the 15" Jensen?
    Are there 4 EL84s in the Peavy?

  7. #7
    Forum Member NeoFauve's Avatar
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    Re: Is this old speaker even remotely desireable?

    4 x EL84
    30 watts into 16 or 8 ohms

    I'm pretty sure it's 8 ohms, but switches to 16 when you plug something into the extension spkr jack.
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  8. #8
    Forum Member Guitar_Mc's Avatar
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    Re: Is this old speaker even remotely desireable?

    If you pull (the correct) two, I believe you drop down to a 15W amp.
    You've gotta measure the impedence on your old speaker.

    Then we're in Fezz & Kap'n territory. I always forget which way it changes the impedence.

  9. #9
    Forum Member Kap'n's Avatar
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    Re: Is this old speaker even remotely desireable?

    According to this the Delta Blues isn't cathode biased. However, if you're biased on the warm side if you pull two tubes the B+ could rise enough to be cooking your tubes a little more than you want.

    On the other hand, if you're not pushing the amp, the speaker will probably be OK. It's just when you start getting towards max output...
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  10. #10
    Forum Member Fripperton's Avatar
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    Re: Is this old speaker even remotely desireable?

    You could keep feed more power into it until it burns out. That will tell you how much wattage it can handle.
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  11. #11
    Forum Member Guitar_Mc's Avatar
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    Re: Is this old speaker even remotely desireable?

    In light of what the kap'n says, I wouldn't pull any power tubes.
    Actually, if you like the way the Delta Blues sounds now, I wouldn't mess with it anyway.
    Just get some cash for the speaker.

    Or, maybe an extension cab?

  12. #12
    Forum Member NeoFauve's Avatar
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    Re: Is this old speaker even remotely desireable?

    This was more of a "'cuz it's there" thing.

    I'm perfectly fine with the DB as is.
    But I just happen to have this old Jensen on hand.

    I will leave things as they are.

    Thanks the info though.
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    Re: Is this old speaker even remotely desireable?

    Quote Originally Posted by Guitar_Mc View Post
    If you pull (the correct) two, I believe you drop down to a 15W amp.


    .
    does this mean 2x el84 always = 15 watts?
    My amp has 2 el84's and 2 12ax7's or sometihng, they say its a 20 watt amp, lies??

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