The biggest useless term in audio is newer more advanced technology the best audio gear was made 40 to 70 years ago and all we have done is taken a step or many steps backward since.
What are the current useless terms in this "audio world"
Throughout the history of marketing of all kinds of consumer goods there have been many useless, hyperbole phrases and words used. It seems on ebay, here, craigslist and others a current pet of Sellers is taking something to "the next level".... which sounds like a great marketing term for an elevator maker.