Sound has always been screwed up for me.
Vehicles in particular could run you over before you knew they were nearby as they still sounded like they were 100+m away.
No had any issues with sound, other than voice comms going after one particular patch.
I use an Asus Xonar Essense soundcard with Dolby Atmos enabled an AKG K702 headphones. My team mates are amazed sometimes when I say things like "Two people downstairs to the left, look out the left window" they do and there are two guys crouch walking into the building