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The Official Marshall Studio Vintage Thread Sv20h

Discussion in 'Marshall Amps' started by Michael Roe, Jan 26, 2019.

  1. G the wildman

    G the wildman Well-Known Member

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    Yes it was brown. Glad to have joined the Kettering club!

    :)
     
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  2. wntbtw

    wntbtw Well-Known Member

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    Thank you for your reply--I was just curious with what your amp was doing wrong.
     
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  3. wntbtw

    wntbtw Well-Known Member

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    Hmmm-any way you can call Marshall and ask them about your amp`s power tubes having to be biased, when you thought that your amp was cathode biased and therefore is self-biasing? Curious minds are curious about this! :)
     
  4. booh

    booh Member

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    There are resistors to regulate the screen grid voltage (as far as I know). Possibly a resistor was wrong or defective and had to be replaced.
     
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  5. marshallmellowed

    marshallmellowed Well-Known Member

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    Probably just a generic form they fill out when an amp comes in. He may have just "checked" the bias to verify it was in range, and "checked" the "bias checked" box.
     
    Last edited: Sep 10, 2021
  6. G the wildman

    G the wildman Well-Known Member

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    I appreciate the quest for knowledge in our community.

    But do not really want to bother them. Although, I am quite sure that they would respond if asked.

    Bottom line bloody great company and my amp is rocking.

    G
     
  7. Dogs of Doom

    Dogs of Doom >>> Moderator <<< Staff Member

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  8. marshallmellowed

    marshallmellowed Well-Known Member

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    When I see these videos, it reminds me of those that only ever use the upper left input and complain about it being overly bright, basically using only 1/2 the amp.
     
  9. Biff Maloy

    Biff Maloy Well-Known Member

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    What surprises me is hardly nobody talks about the top right and jump over to high treble. Use more normal channel with enough treble channel to give some top end. It was one of the first combinations i liked right off. Then i found out later Frampton set his plexi like that. If i use a boost pedal this is what i go with.
     
  10. Mark Collier

    Mark Collier Active Member

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    Because I use mostly Tele's and my 2015 Gibson LP (all on the bright side of things) this is also how I run mine, mostly.
     
  11. junk notes

    junk notes Well-Known Member

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    I use a Y-cable for that.
     
  12. marshallmellowed

    marshallmellowed Well-Known Member

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    I use a "Y" cable also, but I think he's jumping the top 2 inputs, and plugging into the lower right (Normal Low), which will have a different result than using a "Y" cable.
     
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  13. scozz

    scozz Well-Known Member Gold Supporting Member

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    I haven’t seen too many guys doing that. I don’t own a Plexi so I’ve never actually tried it, how would you describe the overall tone Biff?
     
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  14. junk notes

    junk notes Well-Known Member

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    Oh, thanks.:yesway: :cool:yes, I have tried that at home on the 1959, IIRC when I have a fussy pedal hitting the front end, since there is no effects loop. I stick with the Y for the 1992 most the time, and for gigs.

    Looking forward to this weekend though, when I get the SV head. I will at least play it for a couple of weeks before it makes its transition into a Superbass. It will be nice having an effects loop handling some of the pedals that slam the front end.
     
  15. purpleplexi

    purpleplexi Well-Known Member

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    Is it much bother to convert it to superbass spec?
     
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  16. Biff Maloy

    Biff Maloy Well-Known Member

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    Little more meat. Not as much gain.
     
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  17. Biff Maloy

    Biff Maloy Well-Known Member

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    I've got a Y cable. Use that sometimes also. My point was an observation on jumpering. Truth is most of the time I'm high treble only, no boost pedals and cranked.
     
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  18. junk notes

    junk notes Well-Known Member

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    no Sir, not much bother with a little patience. That will go for me as well. Hopefully taking images along the way.:yesway:
    (I would not recommend this mod to a new and/or original SV, unless you are O.K. with resale. I am doing this to, and on, a previously owned used one)
     
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  19. marshallmellowed

    marshallmellowed Well-Known Member

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    Just curious, what's the reasoning that this will make the SV20 a better amp than stock?
     
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  20. junk notes

    junk notes Well-Known Member

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    No, nothing to do with that. Marshall does not offer a 1992 in a Studio, only the 1959. The same reasoning goes behind players who prefer a Superbass 100 over the Superlead 100.
    Also, filtering would be seasoned to taste. I prefer lowered cans on the screens and mains, closer to the early 68 spec opposed to the 69/73-74.

    Just picked it up tonight!:woot: Looking forward to dialing it in.
     

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