Can headphones ever be as good as high end stereo?


I am absolutely satisfied with the sounds of my current setup but I feel like I'm unable to listen at the volumes I prefer on a regular basis due to the ole spouse. I've been considering switching over to headphones. By selling my current speakers and amps I could easily finance stax 009 phones and a suitable amp, which seem to be regarded as the pinnacle of headphones.

My question is, what would I be losing or gaining in the switch? Right now my setup emits a beautiful wall of sound and I would hate to give that up. Understand that I have never owned a pair of headphones worth more than 80 bucks so I have no idea what good ones sounds like. Almost all source material would come from a pyon ultima table. Thanks
bfin3
Bfin3, your problem with your spouse is not unique. For that reason I have been listening to Stax phones for more than twenty years, starting with Lambda Pros driven by an SRM1/Mk2, and now the Lambda Signatures/SRMT1S tube driver. At a recent audio show, I had the opportunity to hear both the Stax 007 and 009 models. Both of my previous phones have sounded great but the higher Stax models were a revelation. I was struck by how comfortable both models were, how refined the sound and they have a more conventional look than my Lambdas. I have no doubt that I'll be listening to either the 007 or 009s in the future, driven by my SRMT1S.
Charyo, I only listen to phones in bed , a lttle Bach or Mozart to clear my brain before sleep.
That said, the Rega Ear phone amp I got on here for about $100 makes my AKG 701's sound fine to me.
@Bfin3 - Just remember that many of the best phones are open-back and virtually non-isolating. You will hear every outside noise and you have to listen in a quiet environment, just as you would with speakers. Take that into account before you plunge into an expensive headphone setup. There are some good closed-back phones, but just be aware of what you're getting into.
Bfin3,

So that this thread doesn't end on a negative note, just try a few high quality phones and you'll learn what many of us already know, i.e. that headphones can give you state of the art sound at a fraction of the price of speakers. A pair of Stax 009s (with driver unit) will cost in the $4-5K range but sound like the best speakers you have ever heard. Remind me again, how much are those high end Wilsons or Magicos?