active on active bass

Discussion in 'Pickups & Electronics [BG]' started by joelkim2001, Nov 7, 2012.


  1. joelkim2001

    joelkim2001

    Joined:
    Nov 7, 2012
    Hi I've got an active bass(active pickup) some days ago and I'm just wondering if it would work with active preamp. And if works, do I have to add another battery in? And would it be worth it?
     
  2. line6man

    line6man

    Joined:
    Jun 20, 2008
    Location:
    Close to Los Angeles, CA
    Works fine. No need for extra batteries; the current consumption is too low to care.

    Though as a side note, if your preamp was designed to interact with the impedance of a high-impedance coil, things might work differently. That's rare, however.
     
  3. El-Bob

    El-Bob

    Joined:
    Oct 22, 2006
    Location:
    Somewhere in the maritimes.
    What bass is it? It's very likely that it has passive pickups, and an active pre-amp already. There are very, very few basses that actually have active pickups.
     
  4. joelkim2001

    joelkim2001

    Joined:
    Nov 7, 2012
    Jazz bass copy by sting.

    The previous owner changed the pickup to an EMG active pickups.
     
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  6. khutch

    khutch Praise Harp Supporting Member

    Joined:
    Aug 20, 2011
    Location:
    suburban Chicago
    Active pickups should have a low output impedance and that will allow them to drive fairly high cable capacitances without any effect on tone. That is one of the things that a preamp will do for you too and if that is all you are after then there is no point to putting in an active preamp as well. Of course the on-board EQ controls that a preamp also gives you are a considerable convenience and if you think you would use them they are reason enough to put in a preamp.

    The effect on battery life could be trivial or significant, it all depends on the current drain of the preamp compared to that of the pickup(s). A lot of preamps draw very little current and if the pickups draw a lot then there will be no significant loss of battery life. If the pickups and preamp both draw the same current then the battery life will be cut in half (although in many cases it will still be over a year), etc. We cannot give you a definitive answer about your battery life with the preamp because the devil is in the details which we do not know.

    Ken
     

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