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  1. M

    Tube Positions, Gain Stages, And Amp Channels.

    Update. I put in some new power tubes (JJ E34L) and checked/set the bias. One side measured around 38 milliamps but the other was up around 45. I set both sides to 38 and now it sounds great. I can get the treble up as high as 4 and presence around 3 which is a big improvement. However, an even...
  2. M

    Tube Positions, Gain Stages, And Amp Channels.

    No problems with low end whatsoever. It has so much bass that it shakes the whole room when I set it anywhere above 3. The pickups are set as they should be. I don't have any issues with excessive brightness on any other amps. The amp is very quiet regardless of what tube I put into V1 (at least...
  3. M

    Tube Positions, Gain Stages, And Amp Channels.

    Thanks for the info. I'm having a little trouble taming the highs. I sometimes get shrill ice pick tones on the upper frets of the high e string. I have replaced the stock speaker with a 10 year old, well broken in, WGS Veteran 30 and I've done the C19 mod but I'm still struggling with the...
  4. M

    Tube Positions, Gain Stages, And Amp Channels.

    Hey Marshall fans. I have a question regarding the relationship between tubes, gain stages, and amp channels. I have a DSL40C which has 2 channels (clean and ultra drive), 4 modes (clean, crunch, lead 1, and lead 2) and 3 preamp gain stages (V1-3). There are some frequencies that I'd like to...
    • mbornhorst23
    • Thread
    • channels clean channel dsl40c gain stages tubes ultra drive channel
    • Replies: 9
    • Forum: The Workbench
  5. M

    Marshall Dsl40c Tube Recommendations

    Hey guys. I picked up a Marshall DSL40C the other day and I would like to retube it. It currently has the stock Marshall JJ preamp and power tubes. I'd like to try to take some of the high end shrillness. I have already swapped the stock Celestion Seventy-80 speaker with a WGS Veteran 30 and...
    • mbornhorst23
    • Thread
    • dsl40c groove tubes jj preamp tubes mullard reissue tubes shrill tubes tungsol tubes
    • Replies: 5
    • Forum: The Workbench
  6. M

    Celestion G12M-65 Creamback Vs Celestion Vintage 30 for a DSL 40c

    I can honestly say from experience that WGS speakers are superior to any Celestion. Not to mention they are less expensive and made in the U.S.A. You really can't go wrong with any of their products. I have a Veteran 30 in my DSL40C and it just rocks. I also have paired together a WGS ET65 and...
  7. M

    New DSL40 tube layout?

    So what is the relationship between the preamp tube positions and the amp channels? For example, is V1 for the classic/clean channel while V2 and V3 is for the ultra gain channel? I ask because I want to use different tubes for each channel to bring out different tones. Generally, I would like a...

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