> Acoustic guitar is good for allowing one to discern audio equipment flaws. It is commonly the source material people use when trying to rate good pieces of eq

> Acoustic guitar is good for allowing one to discern audio equipment flaws. It is commonly the source material people use when trying to rate good pieces of equipment. My go-to track for testing, recommended if rock is your preference, is Muse's "Undisclosed Desires". The beginning of the second verse has a "hidden" bit you will only hear on good headphones. First time I heard that song on some Grado SR80s I literally jumped from being spooked.