The biggest factor appears to be the level of sound isolation before you play anything, the better the isolation the lower the volume you can comfortably listen at.
I don't use expensive headphones (mostly in-ears as they are more comfortable) but I went through a few different sets til I found some that worked like ear plugs.
I don't use expensive headphones (mostly in-ears as they are more comfortable) but I went through a few different sets til I found some that worked like ear plugs.