1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
     
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

Tobias Toby Deluxe IV Upgrades

Discussion in 'Pickups & Electronics [BG]' started by sebrodma, Feb 15, 2014.


  1. Hi guys! I just bought this bass for around $100 and is really nice! Low profile, nice quality, but too much bright!!! I was thinking on some upgrades, like pickups, bridge and preamp... Do you think that is ok to go with an upgrade with this bass? What electronics you recommend me? Thanks!
     
  2. nonohmic

    nonohmic Supporting Member

    Dec 13, 2005
    ABQ, NM.
    I also would like to know. C'mon guys....throw us a bone!!

    I was thinking Bartolini pups and an Aguilar Preamp.. not sure how to reuse the knobs tho.
     
  3. 4StringTheorist

    4StringTheorist Supporting Member

    Can you measure the pickups? That'll help folks here make suggestions.

    Are you looking for a darker tone like the OP was?
     
  4. rufus.K

    rufus.K

    Oct 18, 2015
    SoCal
    Grest bass, a steal of a price.
    Preamp first, no question.
     
  5. nonohmic

    nonohmic Supporting Member

    Dec 13, 2005
    ABQ, NM.
    Pups are 9.5 cm x 1.9 cm. Screw projections are 2.9 cm at their widest point and 4 cm apart. Any ideas?

    This chap put in Bartolinis but looks like there is a little bit of space in the pocket. Tobias Toby Deluxe IV by Epiphone Project

    He also had to do some mods for the preamp... any idea on another pre-amp which may fit in a bit more directly.

    Help is appreciated!!
     
  6. nonohmic

    nonohmic Supporting Member

    Dec 13, 2005
    ABQ, NM.
    Also yes, def want to darken down the tone. Will go with flats and try and get as close to the P thump as I can
     
  7. gabrielvv7

    gabrielvv7

    Mar 10, 2013
    Louisiana
    The Bartolini 9j1 pickups can help with darkening the tone a bit. Just have to make sure that if your bass has the same size cavity for both neck and bridge you get the same size pair and not the standard long bridge and short neck. As for the pre... these bases have 2 band eq if I'm not mistaken (correct me if I am), so maybe upgrading to a 2 or 3 band preamp with a gain cut/boost on the module would be nice to go with the barts.
     
  8. rufus.K

    rufus.K

    Oct 18, 2015
    SoCal
    It is a 2 band, but you can swap in a stacked pot
     
  9. nonohmic

    nonohmic Supporting Member

    Dec 13, 2005
    ABQ, NM.
    Great thanks guys this gives me some stuff to work on. I like the idea of the barts
     
  10. nonohmic

    nonohmic Supporting Member

    Dec 13, 2005
    ABQ, NM.
    Thought maybe just a two band with a gain and a blend control would suit me nicely. Then that will take up the four knobs already in place
     
  11. Too late to write perhaps, but this is what i've discovered.

    Pickups are passive, volume/balance/tone are passive controls as well, tonexpressor is the control of the active electronics.

    Due to hiss when volume is not maxed i checked the electronics, just bypassed the active one and wired directly to output from vol. pot, that way you have a passive bass. Sound then is darker but somehow I missed the mids and the highs I've always complaint about. Tone control is only really noticeable when totally anticlockwise.

    Active electronics splits lows and mids/highs, boost them a lot independently and then gives you the chance to add with the pot the amount of low-end you want, highs are controlled with tone pot, and you do notice its action clearly.

    The problem is the hot output, maybe with the volume pot wired to the output of the active electronics and wiring balance pot directly to it solves the problem of hiss and you still have the ability to lower the output at the same time. To keep pickup load the same I think a 500K resistor must be put in parallel down to ground between balance pot and tonexpressor circuit (to emulate the vol pot at max position), I don't know if there would be any side effect by putting the vol pot at the end of the chain.

    If all of the above works it would be a great idea to have a push/pull vol. pot to have it working as passive/active, giving you the ability to have a darker or a brighter tone. Also you may have a tone selector (rotary switch) instead of a tone pot with preconfigured capacitors and resistors with the tones you use the most.

    By the way, changing the stock strings helps a lot.

    Cheers!