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Incoming - NPD - Trickfish J Core preamp

Hello, hope you don't mind me tacking onto this thread, but I have a '77 jazz with Sadowsky single coils pups that I love, except for the hum. Would you 2-band J core be a good fit for that configuration?
Not J, but I feel kinda qualified to answer with a solid yes. Great sounding preamp.

Note that the J Core won’t fix a hum problem caused by poor shielding or miswiring. In fact, it might be wise to have the bass checked for proper shielding before you spend money on any more electronics.
 
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Hello, hope you don't mind me tacking onto this thread, but I have a '77 jazz with Sadowsky single coils pups that I love, except for the hum. Would you 2-band J core be a good fit for that configuration?

Hi, does the bass have a side mounted or plate mounted jack? If its plate mounted, our 2 band would be a direct drop in replacement, and if it has a side mounted jack, the 4 band would be the replacement. In both cases, the battery lives in the cavity under the circuit board. You should have no problem swapping out the Sadowsky for the J Core, I just did this in my Moollon bass.
 
Would love to hear your thoughts if you got the trickfish installed
Yes, it's installed. Absolutely love it! A wonderful combination with the Fralin single-coil Jazz pickups. And perhaps the easiest install of a preamp I've ever done. It would have been a solder less install, but I soldered it to my dual-battery box.

What I'm hearing with the J Core isn't quite what I'd call a "baked-in" tone, but maybe clarity and definition to the tone, and true to the Jazz bass tone. My first test with any preamp how it sounds with no EQ boost or cut. I seldom ever use any of the preamp EQ, except at times, to roll off the highs in softer moments. So the side-jack model of J Core I have is waaaaay overkill with its 4-band EQ. I do like that I can set the high EQ frequency to 10K. It rolls off the aggressiveness of the tone, but it doesn't sound like a blanket was dropped on the strings. Each band has 2 choices of frequency-select via mini-switches. I've not investigated the other 3 bands. So far, no need.

The J Core and the Fralins will most likely stay in my M5V forever.