Not enough bass response on latest Fatboost 2?

Discussion in 'Effects, Pedals, Strings & Things' started by WailinGuy, Feb 16, 2008.


  1. WailinGuy

    WailinGuy Member

    Messages:
    1,268
    Joined:
    Aug 30, 2003
    Location:
    Silver Spring
    Hey, I just picked up a Fulltone Fatboost 2 from the Emporium. It's serial # is later than #296, so it has the recent mod that "allows for more bass cut when the 'Bass' knob is lower than 25%." (Fulltone changed capacitor C5 from .047uF to .01uF.)

    I was surprised to find that, even with the Bass control turned all the way up, there's a little bit less bass response than in the bypassed signal. I'm setting the Gain somewhere between all the way off to 9:00 and the Volume to achieve unity gain. I was under the impressions that around 12:00 on the Bass knob would result in about the same bass response as the bypassed signal. On my unit, 12:00 noticeably thins out the tone. Has anybody else who owns a recent Fatboost 2 noticed this?

    I'm wondering if Fulltone went overboard with that mod. I'm thinking of changing cap C5 to a .022uF or even to the original value .047uF to see if that gives the Bass knob a more useable range.
     
  2. d-b

    d-b Member

    Messages:
    464
    Joined:
    Nov 12, 2007
    Location:
    Atlanta
    Yep...just got mine to use as an always on boost to fatten and sparkle my clean tone. Sparkle o.k. but the effect on low end was subtractive even when full up. I also found that it compressed way to much for me. I will be returning mine.
     
  3. WailinGuy

    WailinGuy Member

    Messages:
    1,268
    Joined:
    Aug 30, 2003
    Location:
    Silver Spring
    Running the FB2 at 18 volts helps quite a bit in the compression department. But, yes, even with the Gain knob at minimum, this is not a particularly high-headroom device. I think I'll contact Fulltone about the bass issue.
     
  4. Angle Loss

    Angle Loss Supporting Member

    Messages:
    1,494
    Joined:
    Oct 18, 2004
    Location:
    Orange County, CA
    I don't know if this will help, but I have an early GT-500. Mine does not have the bass cut mod, and behaves just as you expected yours would. The bass is very full even at midpoint. Boosting it up makes it really fat. After contacting them, you may want to mod yours to early specs.
     
  5. Ed Reed

    Ed Reed Senior Member

    Messages:
    7,522
    Joined:
    Feb 21, 2004
    Location:
    Somewhere out on that horizon
    I'm running mine at 18v and it has all the bass I want at 9:00. I turn the highs down a little. To me, the FB2 is more about giving a simi cranked amp tone at low volume more than high headroom boost.
     
  6. WailinGuy

    WailinGuy Member

    Messages:
    1,268
    Joined:
    Aug 30, 2003
    Location:
    Silver Spring
    But what serial # is yours? I'll bet it's under #297 (pre-bass reduction mod).
     
  7. Ed Reed

    Ed Reed Senior Member

    Messages:
    7,522
    Joined:
    Feb 21, 2004
    Location:
    Somewhere out on that horizon
    Yep, 113. Man the OCD syndrome strikes again. FB2 vers 2, vers 3, ......
     

Share This Page