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Epi T-Bird Pro... Active vs Passive samples.

Discussion in 'Basses [BG]' started by zachoff, Dec 21, 2012.

  1. Just finished rewiring my Epi T-Bird Pro. Ripped out the active pre and wired it up passive. It's wired Les Paul style v/t v/t with 500k pots & .047 caps. Pretty different! I much prefer the passive. What do you think?



    ...and sorry if this belongs somewhere else. Could maybe also fit in electronics or recordings. :\
    Last edited by a moderator: Apr 16, 2014
    Taha-b likes this.
  2. Nino D

    Nino D

    Oct 31, 2012
    I like the passive. Sounds brighter. Like a new set of strings.
  3. TBirdie


    Mar 11, 2011
    are the tone pots 500k?
  4. Yup... Should they not be? Everything in both clips is full on, btw.
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  6. TBird1958

    TBird1958 As a matter of fact....I am your Queen!

    Mar 13, 2008
    Seattle Washington
    Endorsing Artist Mike Lull T Bass pickups
    I like the Passive tone better as well. Nice!
  7. mournblade


    Nov 19, 2006
    Roanoke, TX
    Passive better here as well.
  8. bassmachine2112


    Mar 23, 2008
    Wiring diagram would be good
    damn good basses though
    pity they didn,t do this with pro classic and used the same bridge.
  9. grenadilla


    Aug 22, 2011
    Passive is better because there is more midrange 500hz-1000hz. The action sounds higher [cleaner] on the A string and the E string. Maybe raise the D and G strings?
  10. Wiring was nothing special. Followed the Les Paul v/t v/t diagram but without the switch. Did something wrong though... Each volume control is not independent from the other. For there to be any noise, both of them have to be at least a little bit up. Not sure what happened there.
  11. moonshinegtrs

    moonshinegtrs Gold Supporting Member Commercial User

    Jan 28, 2009
    White Bluff,Tn.
    Owner: Moonshine Custom Guitars
    You did nothing wrong, that is the way that paticular wiring diagram operates; a Gibson Les Paul does the same thing (I'm 99% sure, don't have an L.P. around at the moment).

    Moonshine :bassist:
  12. seansv


    Jun 19, 2011
    Philadelphia PA
    Thread necromancy! I gotta know, did you replace the pickups? All you did was rip out the preamp? I love my classic thunderbird enough to get a t-bird pro to try this on.
    rickwebb likes this.
  13. bassmachine2112


    Mar 23, 2008
    There are 2 ways to wire a les paul/gibson,the original way up till 62 and the other way till present.
    The difference is that they connected the tone control to the output(middle) tag of the volume rather than the input (outer) tag.

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