I've heard those mics before{AM11}..Nice sounding mic..heavy prox. effect.. it will put the pounds on ya!Great in my estimation for voice over{never tried it,its a guess}..A nice change of pace from the other condensers in its price range...As for how it would fair on guits..It should work pretty well..Wish I could help more.Maybe someones got one and can give more info than I can..Good luck
Don