The only way that obviates the need for the input coupling cap is if all the sources used will be cap coupled, or have DC servos. DC in the signal path will surely have catastrophic results if there are no DC blocking caps. Hey lots of folks skip the condom, but once in a while it results in an itch that won’t go away.
Loayo, the primary measurement that quantifies the electrical performance of a cap is ESR, equivalent series resistance, which can be easily measured. Unfortunately, the caps with the lowest ESR are not always those that IMHO sound the best, so there are probably parameters that we have not evolved standardized testing for yet.
Loayo, the primary measurement that quantifies the electrical performance of a cap is ESR, equivalent series resistance, which can be easily measured. Unfortunately, the caps with the lowest ESR are not always those that IMHO sound the best, so there are probably parameters that we have not evolved standardized testing for yet.