![]() I like RG's answers : just experiment ! (and maybe the best choice will be subjective, never mind.) It is interesting to see how this simple question raised so hot answers! ![]() Putting in a socket and actually listening to sound through a simple circuit while swapping opamps in the **same** set of Rs and Cs will tell the inquiring mind a whole lot about the differences between opamps, very quickly. There are too many tiny variables to otherwise make a cogent answer to a beginner. I really think that the best answer to the question of what the best opamp for your pedal/amplifier work might be is - an IC socket. However, there is a great deal of information to wade through, and much of it is difficult to understand for someone who just wants to know what the best opamp is. Earlier works in this same vein are from Walt Jung ("Audio IC OpampApplications") and Douglas Self's small signal design book. Jack contributed a link to a paper on opamp distortion. The problem is to make intelligent guesses about whether these differences will make audible differences, and even then whether the normal variations in the much larger quantity of other parts, including frequency response determining resistors and capacitors will not mask any contribution of the opamp. There are even differences in response between two parts made from adjoining sections of the same silicon wafer. ![]() ![]() The answer to this is that of course there are differences. I just hate to see the needless (and mostly worthless) arguments about esoterica in part choice makes a difference in sound. ![]()
0 Comments
Leave a Reply. |