[till]

Given that each company supposedly uses their own production mask for the circuit, there should be subtle (or maybe even not-so-subtle) differences in part quality and thus in sound. Did anyone do a comparison? The makers I found are TI, Philips, Fairchild and ON.

 

[amb]

Quote:

Originally Posted by till Given that each company supposedly uses their own production mask for the circuit, there should be subtle (or maybe even not-so-subtle) differences in part quality and thus in sound. Did anyone do a comparison? The makers I found are TI, Philips, Fairchild and ON.

Indeed not only in the production mask, if you pay attention to the datasheet schematic diagram of the internals from each manufacturer you'll find some significant differences in the circuit itself. I haven't done any brand-to-brand sonic comparisons but I wouldn't be surprised that there might be audible differences.