40hz Posted July 2, 2019 Share Posted July 2, 2019 (edited) Hi all, I'm looking to replace the Bartolini NTBT pre-amp in my Modulus Flea (1997 - Lane Poor P/U) as the boost frequencies are 30hz for bass and 10khz for treble, so it's all boom and click. I'm finding it very difficult to get any midrange out of it compared to my previous Flea, which had an Aguilar OBP-1 with a much fruiter, 'middier' sound, boosting at 40hz and 6khz. I was investigating preamps that boost at 50hz and noticed this might be one of only a few that do. Treble is at 4khz which also sounds like it could be up my street. Any users of this preamp that can comment on how it sounds? Edited July 3, 2019 by 40hz Quote Link to comment Share on other sites More sharing options...
itu Posted July 3, 2019 Share Posted July 3, 2019 Can you tune the preamp with changing the capacitors (that are assembled to the pots)? If so, you can even make it asymmetric. bartolini has instructions for this. By the way, is the model really NTB? Quote Link to comment Share on other sites More sharing options...
itu Posted July 3, 2019 Share Posted July 3, 2019 I see, the NTBT or any other newer module has not the frequency tuning possibility. My old tone capsule has capacitors that can be changed, like here: https://bartolini.net/wp-content/uploads/Docs/Pickups/Legacy/9W-9V-XTBT.pdf It seems that their archive has no more the instructions to change the frequencies. 1 Quote Link to comment Share on other sites More sharing options...
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