Which of these would get me closer?

Discussion in 'Amps and Cabs' started by opuspocus83, Mar 17, 2008.

  1. opuspocus83

    opuspocus83 Member

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    A plexi 1987 50W lead/bass circuit with the channels cascaded (this would be switchable), a PPIMV, and a pentode/triode switch (half power mod) installed,
    or a JCM 800 2204 circuit with the same treatment?
    I'm looking for an early Van Halen type of tone/feel.
     
  2. SatelliteAmps

    SatelliteAmps Member

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    Plexi 1987 with all the extra stuff turned off. (1987 is lead, 1986 is bass, so I'm not sure exactly what a 1987 lead/bass is, but I am assuming it is a lead).

    Turn the volumes on ten and shake the neighbors roof off. That is the best way to get that tone/feel. Turning down, using any master volume, or a triode switch (which isn't really a triode nor is it half powered) all will only suck tone. None of it will help get early Van Halen tone.
     
  3. opuspocus83

    opuspocus83 Member

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    Thanks for your input.
    The cascade mod would just be to add gain so that it would be there if I wanted to use it, and the pentode/triode switch would help me lower the volume when I can't crank it.
    Have you seen this PPIMV http://forum.metroamp.com/viewtopic.php?p=172422&highlight=larry+ppimv#172422 Some of those guys nail Eddie's old tone.
    How does the pentode/triode switch effect the tone and what is it actually doing?
     
  4. Blue Strat

    Blue Strat Member

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    The cascaded gain stage and PPIMV will help if you can't crank the amp with no master. Forget about the pentode/triode switch.

    Also consider cranking the amp into a load box and reamplifiying as Eddie is rumored to have done. You get the tone at any volume this way.
     
  5. guitardr

    guitardr Silver Supporting Member

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    Blue Strat has sage advice - quest forth!
     
  6. sugarlou

    sugarlou Supporting Member

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    I had a load box custom made to do exactly that if you are interested..
     
  7. opuspocus83

    opuspocus83 Member

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    I'm going to go with the 1987 circuit.
    Appreciate everyone's insight, and the offer on the load box, but I'll probably buy a Weber if I get one.
    Are there different ways of cascading? or is it a fairly generic type of mod? If there are variations, which one sounds better?
    I ask because Nik at ceriatone is going to cascade the channels before he ships it out.
     
  8. opuspocus83

    opuspocus83 Member

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    This is what I'm going for, but to be able to switch it into or out of the 1987 circuit (The cascade mod that is)
    Check out this thread: http://forum.metroamp.com/viewtopic.php?t=11926&postdays=0&postorder=asc&start=15
    Rockstah quote: "so if you take a stock 12 series and cascade the first two stages u end up with a 2203. adding a 10k on the second stage instead of the 330u/820 that was there when it was a two channel amp.
    now there is gain thats always missing from a 1959 circuit..."
     

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