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I have a problem with these chips that they can't handle the notes from the full fretboard of guitars. I have a Behringer UC100 chorus pedal with these chips in the circuit, and when the bias is set to the optimal value, either the headroom is too little, or in case the input signal to the pedal is reduced, the noisefloor rises to such a level that it becomes disturbing. The symptom is what often happens with some other IC's as well: the last frets (23-24) on guitars sound louder than the others, and these chips can't handle that volume difference and add distortions. My guitar has quite a significant volume difference between the first fret and the last fret, so this problem is very severe in the Behringer UC100, but I have a Schecter Omen Extreme guitar with me as well, and in spite of that has quite a balanced volume on all frets, the last ones (23-24) are still a bit outstanding there, too. Though, in case of the Schecter, due to the smaller volume difference among frets, the noise floor in the chip could be kept lower. It makes it possible to use the sound from the pedal in studio recordings, but for live situations when the volume has to be cranked up, the pedal still fails with that guitar too, because for that the noisefloor is still high. But it is not only this pedal that is problematic. I tried an Ibanez SC-10 chorus, it behaves the same, and guess what, it has the same chips inside.
I know that these BBD chips were used in many pedals decades ago, and still have a popularity, but I just can't believe they manufactured these with such a flaw, that they can't handle the last frets. Aren't there some upgrades of these available, which have the part that causes the distortion upgraded? Or maybe it is a stupid question: is it possible nowdays to have one designed and manufactured that lacks this problem? Like you can have custom PCBs manufactured in small quantities, to.
I am also not sure about that which spec of the chips is responsible for this problem anyway?
By the way, these chips are replacing the MN3207 and MN3102 that are older versions.
I know that these BBD chips were used in many pedals decades ago, and still have a popularity, but I just can't believe they manufactured these with such a flaw, that they can't handle the last frets. Aren't there some upgrades of these available, which have the part that causes the distortion upgraded? Or maybe it is a stupid question: is it possible nowdays to have one designed and manufactured that lacks this problem? Like you can have custom PCBs manufactured in small quantities, to.
I am also not sure about that which spec of the chips is responsible for this problem anyway?
By the way, these chips are replacing the MN3207 and MN3102 that are older versions.
