Axel, I accept what you are saying about the differences in optimal input impedance when using an SUT as good technical background. I gather the manufacturer's specified 30 Ohm minimum loading is intended to apply to a normal MC gain stage and not an SUT and that optimal SUT loading may well be a value substantially lower than 30 Ohms.
There's no need to act so exasperated or put upon in communicating your technical advice. If it's that much bother, perhaps you should just return to listening to music and let the rest of us wallow in our ill-informed state.
There's no need to act so exasperated or put upon in communicating your technical advice. If it's that much bother, perhaps you should just return to listening to music and let the rest of us wallow in our ill-informed state.