Xotic - Bass RC Booster

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aion
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Post by aion »

I couldn't find any record of anyone cracking open a Bass RC Booster, so I did one along with the AC and RC traces. (They all share the same PCB, so the second and third ones go pretty quick once the first one is down!)

Xotic Bass RC Booster trace
Xotic Bass RC Booster trace

Not much changed from the standard RC Booster.
  • All clipping diodes removed
  • Bass tone capacitors C3 and C4 raised from 4n7 to 10n
  • Minimum drive resistor R1 changed from 47k to 22k (less gain on the low end of the rotation)
  • Input capacitor changed from 1uF to 100n (or raised from 47n to 100n, depending on which version of the RC you're comparing)
Full tracing journal here (includes AC Booster and standard RC Booster circuits as well):
https://aionelectronics.com/blog/tracin ... c-booster/

Malacandra PCB here (can build any of the three variants) - updated to V2 based on traces:
https://aionelectronics.com/project/mal ... c-booster/

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