“You are looking at a chance to own a unique / modified Yamaha FB-01. The FB-01 is part of the famous FM series such as the DX7.
Cosmetics: This is one of the nicer units I have seen, apart for a few specs the black paint is in excellent space. All 8 buttons work with ease.
Modifications: Updated audio signal path with hi-fi op-amps, and a battery holder for quick future battery replacement with no soldering required.
All Yamaha FB-01 units have incorrect parts that were installed straight out of the factory. The manufacturer installed these lower quality parts despite what is written on the original schematics, reducing it’s sound quality potential, and it is noticeable like day and night. The modifications installed on this unit unlocks the higher frequencies, better known for the famous bright and sharp sound of FM synthesis that Yamaha initially developed. In addition I installed superior quality OpAmps that not only reduce noise with ultra low distortion but also boosts volume to a reasonable range. To save time in the future, I also installed sockets for the OpAmp chips, just in case there are any other low-noise replacements to try out (note: I do not recommend the replacement of the OpAmps unless you absolutely already know what you’re getting yourself into).”
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