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Power requirements for active pickups AND active EQ

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  • Power requirements for active pickups AND active EQ

    Considering an upgrade for my bass, which already has an active EQ, running of a 9V battery. Pickups are currently passive ones.

    If I go the full active route (Lightnin' Rods PJ set and an STC-3A) can I keep the single 9V battery setup, or will I need to run TWO 9V batteries?
    Guitars:Gibson LP Trad ('57 Classics), PRS SE CU 24 Flametop (TB5/PGn), Ibanez RG870RWZ (PATB set), Jackson DK2M1H (TB4) & DK2 (TB10/VRn/CRn), LTD MH-1000HS (TB-15/Lil59n), ST213A (HRb/STK-S4 m&n) & TE212 (Hot Stack/A2Pn), Dean Cadillac 1980 (59 set) & Old Skull V (TB6/JazzN), Squier VM JM (SJM-1 set);Effects:Korg Pitchblack Poly, Digitech Drop, MXR CAE MC404 & EHX Wailer wahs, L6 HX FX & Stomp, Fender FVP-1, EHX Volume Pedal; Amp & Cab:H&K GM 40 Dlx, L6 DT25 cab;

  • #2
    Re: Power requirements for active pickups AND active EQ

    you should be able to run one just fine, it just wont last as long though i havent used that exact setup. i ran an emg set with active eq off just one 9v and it was fine

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    • #3
      Re: Power requirements for active pickups AND active EQ

      Thanks, jeremy!
      Guitars:Gibson LP Trad ('57 Classics), PRS SE CU 24 Flametop (TB5/PGn), Ibanez RG870RWZ (PATB set), Jackson DK2M1H (TB4) & DK2 (TB10/VRn/CRn), LTD MH-1000HS (TB-15/Lil59n), ST213A (HRb/STK-S4 m&n) & TE212 (Hot Stack/A2Pn), Dean Cadillac 1980 (59 set) & Old Skull V (TB6/JazzN), Squier VM JM (SJM-1 set);Effects:Korg Pitchblack Poly, Digitech Drop, MXR CAE MC404 & EHX Wailer wahs, L6 HX FX & Stomp, Fender FVP-1, EHX Volume Pedal; Amp & Cab:H&K GM 40 Dlx, L6 DT25 cab;

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      • #4
        Re: Power requirements for active pickups AND active EQ

        Two batteries in series will change the sound of the bass, giving it more headroom. Two in parallel will sound the same, but with added battery life.
        "Patience is key. Hard work is obligatory. And itís the decisions you make right now, not the habits of the past, that will shape your success in the future." - Janek Gwizdala

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        • #5
          Re: Power requirements for active pickups AND active EQ

          Thank you for that tip, JB from Hell!
          Guitars:Gibson LP Trad ('57 Classics), PRS SE CU 24 Flametop (TB5/PGn), Ibanez RG870RWZ (PATB set), Jackson DK2M1H (TB4) & DK2 (TB10/VRn/CRn), LTD MH-1000HS (TB-15/Lil59n), ST213A (HRb/STK-S4 m&n) & TE212 (Hot Stack/A2Pn), Dean Cadillac 1980 (59 set) & Old Skull V (TB6/JazzN), Squier VM JM (SJM-1 set);Effects:Korg Pitchblack Poly, Digitech Drop, MXR CAE MC404 & EHX Wailer wahs, L6 HX FX & Stomp, Fender FVP-1, EHX Volume Pedal; Amp & Cab:H&K GM 40 Dlx, L6 DT25 cab;

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          • #6
            Re: Power requirements for active pickups AND active EQ

            Keep in mind also, that active pickups are amazingly efficient. I measured the current draw of an old HSS with all active pickups. The current draw was around 890 ua's. That's less than 1 ma. A single LED is 10x to 15x more than that.

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