GAMMA

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The GAMMA True Blue TB12G 12” guitar amp speaker is ideal for upgrading amps that deliver up to 60 watts of power at 8 ohms. Its 40 oz magnet is larger than that of most other guitar amp speakers, and is essential to the outstanding headroom, clarity and dynamics that the speaker delivers, along with ample low frequency response. The True Blue TB12G is equally at home in delivering aggressive high-gain distortion, transparent cleans or medium-gain distortion, and is a go-to driver for translating tones from your stomp boxes or multi-FX and modeling units.
GAMMA True Blue TB12G 12" Guitar Amp Speaker

collapse expand iconSpecs

  • Nominal diameter: 12" (305 mm)
  • Power rating: 60W
  • Nominal impedance: 8 ohm
  • Sensitivity: 95dB
  • Chassis type: Pressed steel
  • Voice coil diameter: 2" (50.5 mm)
  • Voice coil material: Copper-covered aluminum
  • Magnet type: Ferrite
  • Magnet weight: 40 oz
  • Resonance frequency, Fs: 95Hz
  • DC resistance, Re: 6 ohms
  • Mounting information
    • Cut-out diameter: 10.95" (278 mm)
    • Diameter: 12" (310 mm)
    • Magnet structure diameter: 4.73" (120 mm)
    • Mounting slot dimensions:  0.24" x 0.32" (6 mm x 8 mm)
    • Mounting slot PCD: 11.65" (296 mm)
    • Number of mounting slots: 4
    • Overall depth: 5.28" (134 mm)
    • Unit weight: 6.06 lb. (2.75 kg)

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    5

    3 Reviews

    100%

    of respondents would recommend this to a friend

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    • Fantastic!

      5

      submitted12 days ago

      byKevin

      fromHouston, Texas

      This speaker is clear and articulate across the frequency spectrum. You have to try it to believe it honestly. The highs can be very bright without being spiky or hurting your ears, unlike say a Jensen c12. This is every bit as good as any replacement speaker you can find. It's fantastic, really. Not just for the money, but in its own right.

    • Very good speaker!

      5

      submitteda year ago

      byChuck Wagon

      fromLas Vegas

      I bought this speaker and have recently tried it out with several different amps. I put it in a 1x12 cab and the first amp: Boss Katana. Sounds sweet and full, very responsive. I took the speaker and cab to GC and tried it with a Marshall dsl40hr, immediately better than the V-type. Fuller and more balanced. Tried it with a Marshall origin 50 combo, again much more fuller and more balanced. Tried it with a Friedman little sister head. Played it at rehearsal volume, absolutely sings! Tried it with a Supro Royale. The Supro had a 1x12 cab almost exactly the same size. The Supro speaker was good but the TB was better! More full on the lows and low mids. Tried it with a special edition Fender Princeton that has a celestion g12-65. It sounded just fine but I do like the g12-65 better in that amp. Also tried it with a Orange Super Crush 100. Also sounded good but the orange 2x12 closed back cab was better for that amp. I would highly recommend this speaker for certain applications. 1) any kind of digital modeling amp like the Fender champion series or the Marshall Code. Will almost certainly be a huge improvement. Also 2) Combo amps that are too bright or lacking lows like the DSL series and Origin series. I think it would also be better than some of the Jensen's that come in fenders. This is an American voiced speaker. The lows are full, highs are crisp and bright, mids are slightly subdued but present. Its pretty balanced over all. And I've never heard it fart out or get ice picky. By comparison the g12-65(silverback not creamback) has a slightly tighter bass response and a bit more mids. I like the g12-65 a lot, but for the money this speaker can't be beat!

    • Replacement for code 50

      5

      Verified BuyerVerified Buyer

      submitted2 years ago

      byRay

      fromTyler, TX

      Submitted as part of a sweepstakes

      The speaker on my code 50 was cracking didn't sound right as soon as I replaced it with this speaker The amp came alive now I can use it to play anywhere I want to and I won't be bothered by the speaker breaking up again PS they put you speakers in these apps needs to be replaced

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    Have a question about this product? Our expert Gear Advisers have the answers.

    • asked byKev

      fromBellingham WA

      Who makes the speaker? Celestion? EV? Peavey? Eminence?

      Who makes the speaker? Celestion? EV? Peavey? Eminence?

      Open Reply - Thomas
      I’m very sorry, the manufacturer has not made that information available.