Okay, that's three questions. But if I get answers, more questions will invaribly follow, so beware!
![Wink :wink:](./images/smilies/icon_wink.gif)
Possibly... or the opposite, depending on where you're coming from. It changes the load on the transducer (pickups in this case), which could alter any number of things, level, frequency response etc. or may do very little. All transducers have different impedances. In a mic pre it's used basically to tailor the input impedance to get the best response out of any given mic (normally the input impedance in a mic pre should be 5 or 6 times the impedance of the mic, or higher). I presume guitar pickups have equally varying impedances.Necrovore wrote:What exactly would raising the impedence of the input do for real world applications? would it make your signal appear hotter or something to that effect?