im going to be running a dynamic (vocal) mic into a mixer, also i will have a bass drum using a trigger going into the mixer. then from the mixer it will go from the left and right output into 2 peavey pr15p powered PA speakers. on the PA it has a button for LINE LEVEL and MIC LEVEL. im thinking i should use the MIC LEVEL since a trigger really is just a contact mic right? i just want to make sure before i wreck anything. also will i need a mic pre-amp for either the vocal mic or the trigger? or with the mixer and power PA be enough? and heres a question for the future, what would i do if i had a guitar signal direct into the mixer AND a mic in the mixer. what would option on the PA would i choose then? line level or mic level? thanks.