I don't know what you mean by 'still valid today' but I have heard the NHT Xd and would not hesitate to acquire the system if given the chance; advancement in technology notwithstanding. It's one of those things that stay with you for a long time, much like what the original Logitech Transporter did for me at first listen. I regret not jumping on the chance to acquire those kinds of components no longer in production.
Is the NHT xd System worth buying today?
I have an opportunity to buy the NHT XDS system. The asking price is about what it was going for during the closeout sale, so about half of the orginal retail price, it is not a giveaway. I am just wondering if this system is still valid today considering the advancements in the technology used?