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Onboard preamp question


munkyowen
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Got a bass that I love - plays like a dream, beautiful set up and feel etc - but toying with the idea of changing the onboard preamp. The electronics that came fitted are quite basic and seem to give a bit of buzz and interference (checked by a local luthier, preamp circuit found to be most likely culprit for background noise). 

Bass has a single soapbar pickup and current controls are volume, bass, mid, treble. Aiming for same controls but with active passive switch on volume knob. Only option I've found that fits the bill so far is Bartolini hr2.5 ap/918 as nearly everything else has a tone/blend knob as they're expecting more than one pickup in the bass. 

Any suggestions on alternatives/where to look at options? 

Thanks in advance 😁

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Before you blame the preamp, source of noise can also be noisy pickups (is the soapbar a true soapbar, a single coil... split coil, humbucker?)... a lack of shielding... As for a blend pot, you can hard wire it to a full panned position - voila, single pickup preamp.

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