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VVR - whole amp vs power tube scaling?

Discussion in 'Shock Brother's DIY Amps' started by Che_Guitarra, Aug 17, 2013.

  1. Che_Guitarra

    Che_Guitarra Tele-Holic

    510
    Mar 23, 2012
    Perth, Australia
    I'm readying all my parts to build a 2061X 20W Marshall Lead and Bass. It's the loudest 20W amp i've ever heard so i'm going to install the VVR kit I have in my parts bin.

    To anyone with a decent working knowledge of VVR - what do you think sounds best - scaling the whole amp or just the power section?
     
  2. kleuck

    kleuck Tele-Holic

    615
    Oct 16, 2010
    France
    I don't really like VVR, changes too much the feel of the amp imo, anyway best is to scale only the power amp, lowering the preamp voltage leads to a softer darker more bluesy sound.
     
  3. printer2

    printer2 Poster Extraordinaire

    May 24, 2010
    Canada
    I have read the VVR works better if you just scale the PI and back and put a volume control before the PI.
     
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  5. SngleCoil

    SngleCoil Tele-Meister

    404
    Apr 13, 2010
    Charlotte, NC
    I did VVR in a little single-ended amp. Tried both scaling the entire amp and just the power tube. I didn't like the preamp scaled. Just as kleck said, too soft and dark for me. Having it on the power amp section worked really nicely, though. It opened up a lot of different textures depending on preamp, master and voltage setting.
     
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