Is there a way to uncompress/decongest an amp?

Discussion in 'Amps and Cabs' started by amdowell, Mar 22, 2015.

  1. amdowell

    amdowell Supporting Member

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    So, I've come to the conclusion that my amp's lead channel is pretty damn compressed. Almost choked-sounding. Is there a way to alleviate this issue? A preamp tube swap or a pedal? Any suggestions are appreciated.
     
  2. Sirloin

    Sirloin Supporting Member

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    What amp is it?
     
  3. Karl Houseknecht

    Karl Houseknecht Member

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    I'm guessing the Mesa Maverick in his sig.
     
  4. Al Rose

    Al Rose Silver Supporting Member

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    I had that problem with my Mesa DC2. I replaced preamp tubes V2 and V3 with a 5751 and 12AT7 (they are the main gain tubes for channel 2-the lead channel) and that helped tremendously. It's now very usable.

    Al
     
  5. newking70

    newking70 Member

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  6. 3 Mile Stone

    3 Mile Stone Silver Supporting Member

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    Tubes, cables, buffers, speakers.
     
  7. amdowell

    amdowell Supporting Member

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    To answer some questions:

    It is the Mesa Mavarick. I just got some different speakers that help quite a bit, but still, compared to the 1st channel with the fat switch on, it's just really, really compressed sounding. I'll check out the preamp tubes suggested, but channel 1 sounds great, so I may not mess with that.
     
  8. guitarjazz

    guitarjazz Member

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    Maybe that's the way God made it?
     
  9. Sirloin

    Sirloin Supporting Member

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    mids, least amount of gain possible and the highest master volume possible.

    Otherwise, sounds like you want a different amp.
     
  10. kwicked

    kwicked Supporting Member

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    Lower gain preamp tube(s)
     
  11. Tone_Terrific

    Tone_Terrific Member

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    Or use the clean channel and try some od pedals.
    You will have ch2 right there for quick A/B. I bet you find something better.
     
  12. amdowell

    amdowell Supporting Member

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    This is what I've been doing for the last week, A/B'ing the 2 channels to try to match them. Channel 1 still sounding better. Using the King of Tone to drive it harder is just killer. I just always liked having a dedicated clean channel, so I was hoping to get channel 2 how channel 1 sounds. :bonk
     
  13. Blue Strat

    Blue Strat Member

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    What are your volume, gain settings...etc?

    Lower gain settings give less compression.
     
  14. Timbre Wolf

    Timbre Wolf GoldMember Supporter Gold Supporting Member

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    You can make minor adjustments with careful tube swaps. For instance, if you're using JJ preamp tubes, then replace them with any other option ;)

    Mesa's cascading multiple gain stages are a set up for compression, however. So I wouldn't be surprised if you found greater satisfaction from a different circuit. Even one less gain stage will have a significant effect.

    - T
     
  15. dmagalhaes

    dmagalhaes Member

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    Beat me to it!
     
  16. DRS

    DRS Member

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    I find with my MkV25 on the IIC+ mode, it is very compressed unless I have the gain and mids at around 9 oclock. Also, if the maverick is like my MkV25, the treble setting really affects the gain structure. Try turning the treble to 11 oclock.
     
  17. logdrum

    logdrum Member

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    Maverick. First cut the bass on the lead channel not more than 2. Lower the gain and raise the channel masters. I would use their SPAX7 before trying other tubes.
     
  18. critter74

    critter74 Supporting Member

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    Most Mesa lead channels also benefit from a TS type pedal set to a traditional boost configuration. It tightens the bass, tames unwanted sizzle and brings just the right amount of mids.

    I prefer either a Maxon OD808 or Boss SD-1 (unmodded). Set the gain to barely on (9:00), volume somewhere between 1:00-3:00 and the tone about 11:00. Be sure to keep the gain lower than you would set it without the pedal (for the desired amount of gain you want). Again this helps prevent unwanted sizzle on the highs.

    And IMO JJ preamp tubes are just fine and dandy for most amps. Especially Mesa.
     
  19. broken_sound

    broken_sound Silver Supporting Member

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    Blasphemous to the cork sniffers, but for most higher gain applications, a sonic maximizer does wonders.
     
  20. NewDr.P

    NewDr.P Member

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    yup.
     

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