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OBP3: 9 or 18 volts?

Discussion in 'Pickups & Electronics [BG]' started by erikjrnk, May 3, 2005.

  1. what is the difference soundwise between an OBP3 9 or 18 volts?
  2. EricTheEZ1


    Nov 23, 2004
    Clawson, MI
    Supposedly, it allows you to boost a signal more from it's original position and give more headroom and more dynamic frequencies. I just got done doing it to my bass and I didn't notice anything significant, but I guess I'm in the minority.

    Also, I don't have an OBP-3. Just stock EMG 35J's.

  3. David Wilson

    David Wilson Administrator Staff Member Administrator Supporting Member

    Oct 14, 2002
    Lower Westchester, NY
    yup, it'll give you more headroom. Letting you boost more bass/mids, but IMO it doesn't make any difference to the sound.
  4. I have a OBP-3 in my Amer. Deluxe Jazz bass running at 9 volts. Plenty of boost and no need for routing more room for a second 9v. I still wonder what it would sound like running on 18v though
  5. EricTheEZ1


    Nov 23, 2004
    Clawson, MI
    I also wonder if my experience going from 9V to 18V was tainted because even though I have active EMGs, I only have tone knobs for each of my pickups. Not EQ based, but passive tone based off an active pickup. Always wondered why EMG does that.

  6. Funky Doctor

    Funky Doctor

    Aug 28, 2003
    I run mine at 9 volts. No problems here.
  7. dcr

    dcr Supporting Member

    Ran mine at 9V as well. No probs either,