55hz vs. 75hz Blackbacks

Discussion in 'Amps and Cabs' started by gnugear, Sep 27, 2005.

  1. gnugear

    gnugear Member

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    I just won a quad of Celestion G12M Blackbacks. They're the 55hz version (bass cone). How do these sound compared to the 75hz lead cone? Can the guitar go that low to even make a difference and is there a tonal difference due to the lower frequency response?
     
  2. Scumback Speakers

    Scumback Speakers Gold Supporting Member

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    Some old decrepit sound files of the speakers you just got are here... these will be deleted when the new website goes up in about three or four weeks. But it will give you an idea, although the amp is an early Scumbag conversion...and my aimless noodling, too. :rolleyes:

    http://www.scumbagamps.com/Speakers/speakerlist.html

    It's the 1977 G12M BlackBack 55hz mp3 file you want to check out.
     
  3. tonedaddy

    tonedaddy Member

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    I am here as you are here as you are me and we are
    As Jim notes, clips show the difference.

    When it comes to speakers and tone, It's not just the fundamental instrument frequencies you have to think about, it's also undertones/overtones.

    But for reference, here's the frequencies that correspond to standard tuning on a guitar and bass guitar:

    Lowest note on a guitar
    Open low E string = 82 Hz (approx)
    (E octave 3)

    (For comparison, the lowest string on 4 string bass = 41 Hz)

    Highest note on a 22 fret guitar:
    (D octave 7) note = 1175 Hz

    And take it up a whole step for 24 fret guitar or high bends:
    (E octave 7) note = 1319 Hz
     
  4. SQUAREHEAD

    SQUAREHEAD Supporting Member

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    My ALLTIME fav speakers!!
    I have a matched quad myself and LOVE them!!!!
     
  5. gnugear

    gnugear Member

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    thanks Keith, you just made my day! :)
     
  6. SQUAREHEAD

    SQUAREHEAD Supporting Member

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    My quad of 55hz blackies are from '78... I have A/B'd them in almost every Old Marshall 4x12 and Bogner 4x12 I've owned and nothing does it for me as much as those things!
    I've been looking for a "backup" quad recently...
    They have a more clear top and a better/TIGHTER bass than the regular 75hz old greenbacks ...I LOVE 'em!!!!!
    The closest thing for me is the G12H Anniversary speakers.
    Great buy, Gnugear!!!
    :) :dude

    Keith
     
  7. shallbe

    shallbe Deputy Plankspanker Gold Supporting Member

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    SPAM alert. I recently sold my blackback 55hz speakers. Wonderful drivers.

    I have a pair of 75 hz blackbacks in near mint condition, 8 ohms each, if anyone is interested.
     
  8. Fretmaster

    Fretmaster Member

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    I have a matched quad of vintage G12H30/55hz speakers and they are my all time favorite ceramic speakers. They sound far superior to just about any ceramic speaker I have compared them to IMHO.
     
  9. wilder

    wilder Member

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    I got a quad of them and they rock. You'll be pleased,
     
  10. Red Suede

    Red Suede Member

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    Hendrix used the 55hz. Nuff said?
     
  11. Rich M

    Rich M Member

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    How would these sound in a combo? How bout in a 4x12 with a couple G12H's? I picked up a pair dirt cheap and need to figure out how best to use them. They came in an SC concorde combo box and sound really good in that, but I may move them.
     
  12. Red Suede

    Red Suede Member

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    That used to be a big deal, cross loading 25s with 30s but I found

    as you turned the amp up the 30s overshadowed the 25s too

    much, more headroom and speaker efficiency.
     

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