Crazy or what?

Discussion in 'Live Sound [BG]' started by JimmyN2, Jun 17, 2019.

  1. JimmyN2


    Dec 14, 2011
    Might be in the wrong thread, if I am, my apologies.

    I had my Rick 4003 fully screened and now at home in the ‘music room’ it’s totally quiet, amazing. The noise from the Markbass fan (like on a pc) is greater than any ambient noise.

    But in some places I play there seems to be interference from magnetic induction hearing aid loops and sometimes even radio mikes which then gets into my signal chain, a real pain, and yet in others everything is as sweet as a nut.

    I did think of getting an antinoise pedal but I doubt that’ll help.

    Oh well, rant over.

    Hopefully you guys might have some ideas or even practical experience to cure this. :bassist:
  2. Your pickups may not be shielded at all? I don't know to what degree it could help because you can't shield the string side anyway.
  3. There's a mod you can do. Reverse the polarity on the bridge pickup and also flip the magnet over to reverse north south on it. Makes a big difference, but there's some side effects. If you normally play with both vol pots cranked or even, it works great. Kills all the noise or pretty close. But if you turn one or the other vol pots down compared to the other, the noise cancelling effect is lost.
  4. JimmyN2


    Dec 14, 2011
    Always true !!
  5. JimmyN2


    Dec 14, 2011
    What's the side effects?
    Sounds like a plan, anybody else done this on a Rick 4003?
  6. I think lots of guys have done it.

    Here's a full tutorial on the procedure (it's called the RWRP Bridge pickup mod)
    [Rickenbacker 4003] RWRP Bridge Pickup Mod Tutorial

    It made my Ric Shadow actually gig worthy. Really sucked with all the 60hz hum before.

  7. JackTheRipper

    JackTheRipper Supporting Member

    Mar 5, 2008
    San Diego, CA
    The RWRP mod works well if you dime the volume knobs as mentioned. I also use an ISP Decimator II G String noise gate that works very well.

  8. JimmyN2


    Dec 14, 2011
    Thanks guys for all your input. I have already had the Rik shielded and that alone has meant that it can be right next to the amp and there is no perceivable noise at all. I’m going to see my guitar tech friend and book it in for a reverse polarity modification as described in Don’s post.
    Downunderwonder likes this.