who jumpers the channels on 4 input marshalls?

Discussion in 'Amps and Cabs' started by JamesHealey, Jan 18, 2008.


  1. JamesHealey

    JamesHealey Member

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    Which artists historically did this? and how many of you guys do it?
    what do you think of the tone? with or without? and if without which hole do you prefer to plug into?

    Cheers guys.
     
  2. HeeHaw

    HeeHaw Member

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    IMO There's no benifit from jumpering the channels other than maybe some added bass to the treble channel. Any four holer I've ever played sounded better without the inputs being jumpered together.

    There are great tones to be had by pushing the bass channel with a treble boost or rangemaster clone.:cool:
     
  3. Cthross

    Cthross Member

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    I jumper the channels. Plug guitar into the hi treble, jumper from lo treble to hi normal. This is generally how I use it, but it sounds really good without jumpering as well. I'm happy either way, but by jumpering it adds another more effective tone control.

    When not jumpering I prefer the lo treble input and the hi normal input.
     
  4. JackButler

    JackButler Supporting Member

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  5. Squigglefunk

    Squigglefunk Senior Member

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    I use a jumper on my JTM45. I like the combination of the two inputs blended together. I usually set the normal channel up to get most of my volume and use the treble to taste.
     
  6. III

    III Member

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    I usually jump 'em. OD into Hi Normal. Jump Lo Normal into Hi Treble. Backwards from most, it seems. Setting the balance of Loudness I and II at a good volume for the room is the "fun" part, since I don't attenuate - yet. It's worth it though.

    Two seperate OD chains into each channel is fun too. Or A/Bing clean and dirty.

    When going straight into Hi Normal the Loudness I knob still effects the tone and can add some bite back into the sound. Doesn't seem to work the other way around though. Going straight into Hi Normal and using only Loudness I while II is completely off is a cool skanky sound too.

    I play a no loop 1959RI - nice and bright if needed ;). I love 4 holes.
     
  7. RomanS

    RomanS Member

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    I do - on my Weber 6M45 (homebuilt JTM45 clone); I play a Tele, and use tha amp clean most of the time, and the treble channel alone can get a bit too icepicky with the bridge pickup; the normal channel on its own sounds a bit too dark for clean playing for my taste; by jumpering I'm able to blend a perfect mix of bite and warmth!

    Oh, and I do it like most people: guitar plugged into Hi Treble, jumper from Lo Treble to Hi Normal.
     
  8. voodoosound

    voodoosound Funk & Grooven member Silver Supporting Member

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    I jumper the 1959HW and crank it with a variac. Tonal bliss.
     
  9. bluessyndicate

    bluessyndicate Supporting Member

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    I do it...It's an Aiken and it's done internally...I love it.
     
  10. stratofied

    stratofied Member

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    Germino Club 40, jump = good.
     
  11. CitizenCain

    CitizenCain Member

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    No jump, but use a A/B-Y box on my JTM45 clone. The Y connection is a lot stronger than jumping, IMO.
     
  12. bluesmain

    bluesmain Member

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  13. DGDGBD

    DGDGBD Member

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    Sometimes I do...it depends on the room. I'll jumper the channels to get some extra beef if its sounds too thin.
     
  14. Fireball XL5

    Fireball XL5 Supporting Member

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    I never jumper the inputs because to my ears, it muddys up the tone somewhat. It's not as clear as when the channels are not jumpered.

    I've never had an issue with lack of beef, low end or thin tone with any of my old Marshall amps, so I don't find it necessary.
     
  15. GAT

    GAT Gold Supporting Member

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    I use a Y into both hi inputs of my '71 JMP.
     
  16. entraind

    entraind Member

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    I'm jumping my Germino C45 and loving the fatness of it.
     
  17. KennyM

    KennyM Supporting Member

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  18. Griz

    Griz Member

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    I've tried all variations with a number of different guitars. It just depends what you're trying to do with a particular guitar + effect/no effect signal.

    Don't forget to try the "Y-cable" approach; it's different than jumpering.

    Jeez, is "jumpering" even a real word?

    Have fun! :D
     
  19. poipounder57

    poipounder57 Member

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    I'm a channel jumper:)...I'll try the Y-cable later. Jumping the channel's gave me more control...also getting fatter tone.
     
  20. RomanS

    RomanS Member

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    So, you Y-cable user - how does that sound compared to jumpering the inputs?
     

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