zobels and rc networks are clearly audible. better parts result in better sound. and oh my goodness when you cryo them.
second, lee hasn't said so yet but he was experiencing a tank circuit and that was the source of his hf resonance. the use of 2 filters in a circuit results in a hf resonating circuit or tank circuit. make sure that your amp is not terminated with a zobel when you are using an external one or the same thing will happen to you. phone the amp manufacturer to be sure.
b
second, lee hasn't said so yet but he was experiencing a tank circuit and that was the source of his hf resonance. the use of 2 filters in a circuit results in a hf resonating circuit or tank circuit. make sure that your amp is not terminated with a zobel when you are using an external one or the same thing will happen to you. phone the amp manufacturer to be sure.
b