not really. headphones range a lot within the frequencies you DO hear.
also, the weight vs outside sound isolation ratio varies with price.
those are all observable and measurable things.
speakers, they also vary on those audible frequencies, but after you are past $150 per speaker you are only dealing with quality after very loud volumes.
over $3000 for a home system? just be honest with yourself and confess you are buying the prettiest furniture that match your decor.
also, the weight vs outside sound isolation ratio varies with price.
those are all observable and measurable things.
speakers, they also vary on those audible frequencies, but after you are past $150 per speaker you are only dealing with quality after very loud volumes.
over $3000 for a home system? just be honest with yourself and confess you are buying the prettiest furniture that match your decor.