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G12H30 users ( drop me a line...need help)

Discussion in 'Effects, Pedals, Strings & Things' started by Mooncusser, Sep 24, 2006.

  1. Mooncusser

    Mooncusser Member

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    Hi guys,

    Okay, I realize I need to get rid of the G12T75's in my Marshall cab and upgrade to G12H30's. I play alot of Hendrix.
    Could those of you who use these speakers introduce me to them, and explain to me what the most dramatic changes I will encounter when usiing them as opposed to the G12T75's.
    Also, since we are being critical here, please let me know if they have any short commings as well.
    I have heard the sound clips from Celestion....now I want the players unbiased opinions.
    All I know so far, is that they are 30 watts a piece. that's 120 watts for my 4X12. Is the breakup extreme or is there a fair amount of headroom?
    I pay clean stuff to, and I was wondering about this factor.
    Thanks for your time and help,
    Mass
     
  2. TheGuildedAge

    TheGuildedAge Member

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    I own a 1960A cabinet. Hated the GT75s, put in four G12H30s.

    Amps used have been a Marshall DSl 100, Fender Prosonic, 68 Bassman; right now I have a Fargen Epic 30 and Marshall JCM800.

    As far as cleans, rich, smooth, can sound thin with certain guitars, but for the most part I would say cleans are great.

    Overdrive. Where do I begin. Smooth, crunchy, textured rock tone.

    They are my favorite Celestion for the clean/moderate rock stuff. For real high gain, I think the lead 80s have more articulation, but the G12H30 is my speaker of choice.

    I also don't drive my amps hard enough to destroy the speakers. I get some speaker breakup, but that ads to the tone, that crunchy feel.
     
  3. Mooncusser

    Mooncusser Member

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    Yes,
    The cab is a modern 4X12. Do you think that replacing the back with birch would make that much of a difference in tone of these speakers?
    Tell me more about this, please. If I don't have to drop the coin, that would be great.:)
    From what I have heard, the G12T75's aren't savable.:messedup
    Tell me more, please.
    Peace,
    Mass
     
  4. 908SSP

    908SSP Supporting Member

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    No the press board back is barely audible I have switched and it was barely worth it. Speakers are ten times as noticeable as the back material. Modern Celestion G12H30s don't cut it for a authentic Hendrix tone. Those aren't the speaker he used in anything except name. He started out with G12H25-75 and then later used G12H30-55 speakers. The closest you'll get is Scumbacks SA12H30-55. You can change the back and the grill cloth to a basketweave for more high end filtering.
     
  5. Mooncusser

    Mooncusser Member

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    So what do you get with the modern G12H30's??
    Thanks,
    Mass
     
  6. rockon1

    rockon1 Member

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    Bright at first then not as much after break in.Still not a really warm speaker. Nice low end,fairly even response but a bit of a "push" in the top end. Very beamy. Not a good fit for a bright amp. Probably excellent for a darker sounding amp though..........Its really about finding the right speaker for an amp. Trying to figure what speaker works with an amp goes beyong general descriptions and is a PITA sometimes!
     
  7. Mooncusser

    Mooncusser Member

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    LOL!
    I have a Marshall 1959 SLP RI w/ out the fx loop.
    The 4X12 has the G12T75's.
    Here is the weird part of all of this........
    The 1959 SLP has a great set of 6L6GC's in it, rather than the EL-34's.
    The 6L6GC's sound very different in a Plexi circuit...believe me when I say this, it really sounds nice.
    I have a good set of high end effects and a great strat w/ CS 69's.
    Maybe all of these componets combined has granted me the tone I was shooting for so much.
    When I play to a Jimi CD......The tone is REALLY, REALLY close!! I have been listening to him for 30+ years so I am critical there.
    So the tone is REALLY close, but just a "HAIR" shy.
    I was thinking it was the speakers. That's why I started this post.
    People keep telling me I can't get far with the G12T75's.
    Thanks for the help,:BEER
    Mass
     
  8. 908SSP

    908SSP Supporting Member

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    +1 :AOK

    I have tried 6L6s in a Plexi circuit too bright and too bassy not enough mids. I don't think it will sound all that good with G12H's, it would probably sound better with old greenbacks with really thick mids. But I would consider changing to KT66 tubes in your Plexi to get closer, warmer lows and more mids then 6l6 but not all mids like a EL34.
     
  9. Mooncusser

    Mooncusser Member

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    May I ask what mods have to be done to accept KT-66's? :confused:
    Thanks,
    Mass
     
  10. EXP

    EXP Supporting Member

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    switch the impedence selector to 8 ohms and a KT66 equipped OT wouldnt hurt either.
     
  11. TheGuildedAge

    TheGuildedAge Member

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    Interesting responses. I have G12H320s in my Zinky 2x12, for use with my fargen Epic 30 (vox ac30 copy) but I don't find them too bright at all.

    Just a nice jangle, then warm crunch with pedals.

    Must be my guitars or tubes taming the highs.
     
  12. 908SSP

    908SSP Supporting Member

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    Vox is supposed to be bright a Hendrix tone Plexi isn't.
     
  13. Mooncusser

    Mooncusser Member

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    I just want to make sure I am understanding you correctly.
    You say to set the impedence selector to 8 ohms from the 16 it is currently set at?
    With the four 16 ohm 75 watt speakers, is it okay to switch to the 8 ohm selector setting?
    If I do this, what difference should I expect to experience?
    How will the G12T75's be effected?

    .....As far as installing a KT-66 OT, if I need to install a specific OT to accept the KT-66's, I'll probably wait on that one because when I am ready to go that far I will probably be either making MAJOR improvement mods to the head overall, or buying a JTM 45/100 from Metro.

    My best to ya,
    Mass
     

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