I don’t think I will change them, flojob. In any case they’d cost me in the region of double what I paid for the bass!
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The thing is, with hindsight, I doubt I could hear that much of a difference between pickups in the band situation because I only hear myself from my rig on the back line. Yes, I can tell if the sound is muddy or bright, but not much more. I could not pick out nauences, that is for sure. Whether or not the audience could tell, I really don’t know.
A pickup is some wire and a magnet and there are only so many ways you can combine those two ingredients. Naturally certain combinations will have certain characteristics. All of them will, have a frequency response from low, through mids, to high, but in varying proportions depending on how the coil and magnet(s) are combined.
So surely - if one wished - it should be possible to make any pickup sound very similar to any other, all else being equal, just by Eq-ing the bass and/or amp? Or is that an incredibly stupid idea?