I love the "recommend using headphones" notes people put on videos because a vast majority of people only listen through laptop or phone speakers. I recommend everyone buy a decent set of powered bookshelf speakers and a subwoofer for home use.
As a MT-09 owner with a full carbon akropovic exhaust. The headphones doesn't represent the sound at all. Trust me its way louder in person. Even with DB killer inside.
A stock one will pop but it's silenced, so you'll need to remove the silencer from muff with 1 screw and some force and then it'll pop, pop, crackle when coasting down hills and in some gear changes depending on revs or QS.. Most satisfying mod around.
