VLC and other video players have options to tweak video/audio latency to get them to syncronize by delaying whatever's ahead by a fixed amount to more accurately match the other. There are even chrome extensions proporting to let you tweak such syncronization for youtube, although I haven't tested them. You don't need to find the exact audio offset either - just close enough that you can't tell anymore.

But this only helps with less interactive media. Adding even more latency to video games or MIDI keyboard synthesizers is counterproductive: sure, you could delay the rendering of a muzzle flash to match the playing of a gunshot, but that makes things feel even worse when you click! Maybe tolerable in a casual macro-focused RTS, but not so acceptable in a twitch shooter.

> finding the exact audio offset would be impractical.

And yet you can land an airplane without looking out the windows, by measuring timestamps between source and destination of a signal (GPS).

I'd argue not that impractical.

Fortunately you can hook them up to a good soundcard quite easily!

Something like the Soundblaster ZXR makes for exceptionally good headphone listening on the PC.

I have the XM3 and some wired-only Audio Technicas. I only use the XM3s wired on the PC, can't stand the lag however small myself.