Dull, lifeless musical rendering, massed strings undifferentiated, often somewhat harsh, grainy sound, no bloom, lack of dynamics . Redkiwi is right to these here ears.
What is the Sound of Impedence Mismatch?
As I understand it, you want your power amplifier to have an input impendence much higher than the output impedence of your preamp, at least 10x. Can anyone tell me what the sonic symptoms are of a mismatch? If I'm hovering around 10x, what might I hear that would indicate an impedence mismatch as opposed to, say, a preamp that is simply too bright or whatever?