I'm about to buy a fender champion 600 and it has hi and low gain 1/4" inputs meant for guitar and microphone. Now i have a feeling that if i just take a standard low z mic and take an xlr to 1/4" cable, i wont have enough power to get good levels out of the amp to compete with a guitar playing at the same time. do i need to just buy a hi z mic? what is a good one you'd recommend?

thanks everyone