country of origin?
budget?
what kind of sound signature do you enjoy? (bassy, neutral, bass-light and detailed in treble, etc)
open or closed? (open = more soundstage closed = isolation)
what motherboard or soundcard do you have? any headphone amplifier? (if no, are you opposed to getting one?)
do you require virtual surround sound?
large head or glasses?
do you need a microphone? (if yes, what style? clip on, boom clip on, desk)
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in general any set of hifi headphones will sound significantly better than gaming headsets with the notable exceptions being headsets based on headphone designs made by actual headphone companies. these would be the hyper x cloud, pc363d, mmx300, game zero and game one as well as the adg1. most however are overpriced (depending on country) for what you get and buying the headphone they are based on + mic + amp can sometimes be cheaper.
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moved to /peripherals/