What happens when there is no cable hooked up to the input of the preamp? Does it hum then?
phonostage paradox
Any comments regarding an issue with my backup Parasound Z phono preamp would be welcome: When I use a MM cartridge, all is well; when I use a MC [in MC setting], a hum develops which resists all grounding strategies. However,my Denon 301II LOMC plays loud enough even in the MM setting, as does a LOMC Benz Micro Gold. Any explanations???