Hi Jvogt,
Actually, it is low negative feedback, broadband amps, like Stasis and Spectral that have issues with Goertz cables. I have heard that Spectrals are so susceptible to this that they will not guarantee their gear unless you use their MIT cables, which are zobeled. Global feedback makes an amp more stable, but that comes at a price, as they do not sound as good. Nelson Pass has something on this at his site, I think it is under the article on cascode amps. The more feedback, the more you kill the highs, which kills air, etc...
Actually, it is low negative feedback, broadband amps, like Stasis and Spectral that have issues with Goertz cables. I have heard that Spectrals are so susceptible to this that they will not guarantee their gear unless you use their MIT cables, which are zobeled. Global feedback makes an amp more stable, but that comes at a price, as they do not sound as good. Nelson Pass has something on this at his site, I think it is under the article on cascode amps. The more feedback, the more you kill the highs, which kills air, etc...