I would love to use NP0/C0G, but the input impedance I am driving is fixed, and demands a high vaslue coupling cap. Single supply is dictated to. I normally prefer to use plus/minus supplies and do away with almost all coupling caps. I'm trying to think when you would use X hundred nF coupling caps on audio. It implies high impedance which implies high(er) noise.
An aside - "best" capacitors I even used were glass dielectric, fully glass encapsulated, from Corning. Their stability was astonishing, and virtually zero loss. Mega expensive though, and only up to about 1nF AFAIR.
An aside - "best" capacitors I even used were glass dielectric, fully glass encapsulated, from Corning. Their stability was astonishing, and virtually zero loss. Mega expensive though, and only up to about 1nF AFAIR.
