51 P vs jazz PU for treble and freq width?

Discussion in 'Pickups & Electronics [BG]' started by boristhespider7, Apr 6, 2018.


  1. boristhespider7

    boristhespider7

    Jan 27, 2008
    UK
    Looking at building a fender style passive bass with single coils. Which PU has the most top end assuming they are in the same position? Which one has the widest freq response? Keeping it to standard non overwound PU's at the mo
     
  2. bigtone23

    bigtone23

    Dec 10, 2014
    Denver, CO
    I'm in just to hear what everyone thinks. I have never compared those PUs before and am curious.
     
  3. sikamikanico

    sikamikanico

    Mar 17, 2004
    Time is coloring both memories, but I’d say J is your best bet. That said, there are so many different models of each (but especially the J) that you can probably either find one or have one made to fit your needs in either format.
     
  4. boristhespider7

    boristhespider7

    Jan 27, 2008
    UK
    Yes, i did think that, particularly with the J. There are so many options: ceramic, alnico, overwound, QP'ers's etc. I'm just after a rough probability at the moment ie. a "standard" J or 51 p PU is more likely to be have more treble or freq width than the other PU etc
     
  5. boristhespider7

    boristhespider7

    Jan 27, 2008
    UK
    Anyone?
     
  6. bigtone23

    bigtone23

    Dec 10, 2014
    Denver, CO
    I have pondered this. I'm a J guy, but did have a SCPB a few years ago. The memory is a little fuzzy, but the SCPB did have a unique sound to it vs the soloed J neck PU. EQ aside, the SCPB was more thumpy and punchy. I think that both PU designs can wound and designed to be fairly wide range, but given the general winding amount and bobbin dimensions, they will have tendencies to a certain tonality. It seems the SCP PU design tends to favor a touch more mids and highs given that it's traditionally located about 1/4-1/2" further from the bridge vs a J neck PU. The low end is enhanced by it's harmonic placement in the scale. The narrow and long J PUs tend to be a touch more scooped and articulate vs a tall and wide SCP being more punchy and aggressive.

    Another big difference is the J PU has the two pole per string aperture vs the P with one pole per string. This makes a very different initial attack on the note, the single pole PU will initially spike harder and decay quicker vs the J type PU's smoother attack and slightly longer decay. Seems that both, being single coils, can have a similar top end, but the J will be more articulate and the SCP more punchy. Another thing to consider is that SCP PUs have pole piece spacing to accommodate the neck position and the spacing may be too narrow for the bridge position. If there is misalignment, the string will go in and out of the magnetic field and kind of warble. Bigger pole pieces help negate that effect.

    This is just my 2 cents, but given the amount of choices out there, which is like 10 J designs to 1 SCP, you may have a better chance finding a J PU that will meet your needs vs a SCP.
     
    Last edited: Apr 9, 2018
  7. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

     
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