RB 500 : I love the sound, but the stock transformer was noisy

4 years ago

I mainly use it for acoustic guitar. The strumming parts are very usable, but for picking it's just too noisy. On all the tracks there was a very audible background hiss.

I ordered a Lundahl LL2915 ribbon mic transformer. After a couple hours of soldering and a couple of burnt fingers the noise is gone and it sounds divine. Not sure if it was the tranny or the sloppy soldering. Can't say that my own soldering is top notch either. Pretty sure the warranty is void now :)

BTW the LL2915 was to big to fit inside the original tranny shield. I bet LL2912 would fit though. If a mu metal core is a must I recommend LL2914 or a different shielded tranny.

Image the t.bone RB 500

Technical Data

  • Manufactured by The T.bone
  • Released in 2004
  • Average price : $109
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