Longest Metro Plexi 50 Build

Discussion in 'Building the Classics' started by Exojam, Aug 4, 2018.

  1. coolidge56

    coolidge56 Well-Known Member

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    8 is the sweet spot, 9-10 the quality of the tone begins to fall off imo.
     
    neikeel likes this.
  2. Exojam

    Exojam Well-Known Member

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    So yesterday I decided to make some measurements of the the system I was using looking at harmonics and a waterfall to see how bad my "guitar" room is.

    So the equipment being used is as follows:
    SG Gothic with David Allen Powerage pickups.
    The amp I just built in this thread with matching Mullard XF2 Single Halos for power tubes,
    V1 - Baldwin/Sylvania 12AX7
    V2 - GE JAN 12AX7A
    V3 - Raytheon JAN 12AX7
    Mesa Recto Rectifier 2x12 Cab Cabinet Celestion V30s England
    Setting of the amp are in a screenshot and guitar volume and tone were around 6

    Show with the screenshots, I split them up in a few ways. One has the fundamental and all harmonics, one has the fundamental and even harms, one has the fundamental and odd harms and maybe one more, there is a screenshots of the amp settings and one waterfall.

    wondering what some of you guys think of the harms, as for the waterfall (which I knew before even taking this one) is that the room I play in ABSOLUTELY SUCKS for acoustics.

    All harms in %
    all harms in %.png

    even harms
    even harmonics.png

    fund and all harms
    fund and all harms.png

    fundamental
    fund.png

    odd harms
    odd harms.png

    waterfall
    waterfall.png
     
  3. Exojam

    Exojam Well-Known Member

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    I added another one real quick that changes the scale to db relative and i hovered over the fundamental so it is in yellow and easy to pick up which may make it easier to compare the harms to it.

    db relative - fundamental yellow.JPG
     
  4. ampmadscientist

    ampmadscientist Well-Known Member

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    Start the reactor... Free Mars!
    "...the room I play in ABSOLUTELY SUCKS for acoustics."

    Install some bass traps in the corners of the room, and it can be a whole new amazing world.
     
  5. Exojam

    Exojam Well-Known Member

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    Amp,

    That is the plan. I have corner traps and other panels in my family and man do they make a world of difference.

    I still (I believe) a whole box of 2”*2’*4’, 12 sheets of 203 in the basement I can use. I just need to pick out some fabric and build some frames.

    Not sure why more home players like myself do not do this in the guitar world. When I was big into speakers and subs it seemed more people would do this.
     

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