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Graphic Eq as a pre amp

Discussion in 'Effects [BG]' started by TaySte_2000, Jan 7, 2003.

  1. TaySte_2000


    Jun 23, 2001
    Manchester, UK
    Endorsing Artist: Mojohand, Subdecay, Overwater, Matamp
    Could you use a graphic eq as a pre amp into a powered cab would you need to boost or cutthe volume at all?

    What other pedals (Non eq) would make cool pre amps.
  2. bassackwards

    bassackwards Member

    Dec 16, 2002
    Depends what you mean by a "powered cab". Do you mean a combo or a cab with a power amp? If you mean a combo, then go for it. Lots of people run an EQ before a combo. If you mean a power amp with a cab, then it's not the greatest idea. You won't get as good of a tone as with a preamp that's meant for bass. As far as pedals, you could use a Sansamp Bass DI, an MXR M-80, or a Fodora (sp?) preamp peadal. Why a pedal, though? I use a Sansamp rack-mount RBI and it's quite good.
  3. BryanB

    BryanB Moderator Staff Member Supporting Member

    I doubt it would work well. Most graphics are designed for low-impedence line levels signals. You bass may be low, (active), or high (passive) impedence. Impedence mismatch can cause poor quality sound. Also, the signal on most basses is too weak. This means the eq would not be able to raise the signal level enough to satisfy your typical power amp without significant boost. You would end up having to rasie the overall signal level from the eq so much that you would end up with poor quality sound and very little headroom to do actually tone shaping. Plus the noise would likely be pretty bad.

    However, you can get a good generic instrument pre-amp, and send the output of that to the eq, then to the power amp. FMR Audio just can out with a new one for about $500 that is getting good reports.

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