text: i just got my new guitar, i need somebody with knowledge of these things..please help? i got my new epiphone yesterday, does anybody know if messing with the amp effects can damage the guitar or the amp..such as gain and whatnot? you can set your amp as you please.  i use full gain most of the time in fact you can turn all knobs to max and that will be ok.  just find a sound you like by messing around.  your guitar wont be damaged