Wow, lots of responses - thanks for the input everyone.
Am I off in my hypothesis that the input impedence on an amplifier would make all the difference in the world? I mean, as this varies, it will react differently to a given output level of the pre-amp... One might boost the signal before it hits the output stage to a fixed level... whereas another might not alter the level at all, making the effective output MUCH more dependent on the signal level it receives.
I digress... maybe I'm not making sense here.
Am I off in my hypothesis that the input impedence on an amplifier would make all the difference in the world? I mean, as this varies, it will react differently to a given output level of the pre-amp... One might boost the signal before it hits the output stage to a fixed level... whereas another might not alter the level at all, making the effective output MUCH more dependent on the signal level it receives.
I digress... maybe I'm not making sense here.