Even the HD800s can't compare to speakers. Having separate 10" woofer for the low octaves, two 6" woofers for mids and one tweeter and a super tweeter. Yeah we're talking 5 dedicated cones for different spectrums of sound compared to one tiny driver trying to reproduce all sound. There is just no comparison. This is my dream tower, the subs on the sides, the rest of the speakers out front, but the speaker housing is very deep so the two mid woofers are directed upwards instead of forward. Just in my head for someday future, no company mentioned, sorry.
I think even cheap speakers will outperforum the HD800, its the detail and intimacy that a cheap speaker can't match though, but for overall enjoyment of sound, music, soundstage, power, and fun, tone accuracy across the spectrum, yeah even my crummy system will do this better than headphones. I don't have an incredible music system like you all.
I just have a Kenwood Receiver connected to the Computer and a Denon CD player, and two JBL speakers that are now a decade old, and if I could just let them do what they do best, I would listen over my headphone rig any day. But old people, and scrooges in the apartment would surely have letters sent from the landlord coming my way. Previously was in a apartment building directed at other students, angry nerds from McGill also were upset, hence my journey in headphones so far.
So when people start looking for the perfect sound, reading reviews of the HD800, or even the most ridiculous PS-1000, I can't help but laugh.
Headphones are definitely fun, more private, and an individual experience speakers can't match, but its definitely not the place to look for your perfect sound. As someone else said, with speakers there is that element not even the most expensive headphones, K1000, statics, whatever can't provide, the feeling. Speakers let you feel the music, the bass, the resonances. Even crappy speakers can let you do that. So as much fun it is to read opinions about comparison between headphones and speakers, its also dumbass, no real point IMO.