It seems somehow one dimensional to think of the Klipsch drivers as low technology and not address the technology of the horn itself. Using a tapered horn to match the impedance of the driver with that of the surrounding air is, IMHO, the highest of technologies, though certainly not a new one. Low tech to me is sticking the same drivers in the same box and pouring crushed up diamonds on your tweeter diaphragms and making your woofers out of the latest stuff that NASA sent up on the Space Shuttle.
None of that addesses the actual question. I moved to original Cornwalls and Fortes a couple of years ago from B&Ws, Maggies, etc. But I would never call the move an upgrade. It is simply a different set of strengths and weaknesses. Are you willing to accept box and horn colorations in the midrange and upper bass in exchange for a certain ease, scale and sense of touch? There are clearly people who are, and those who aren't, and that is why the views on the Heritage Klipsch are so polarizing.
As far as being stuck in time, that criticism is probably spot on, the Klipschorn being in production longer, by far, than any other loudspeaker. The earliest models dating to the mid 1940s. It is the horseshoe crab of speakers, outlasting so much "high technology" that is now relegated to the scrap bin. It is a speaker for the ages; but certainly not the speaker for everyone, or even most people.
None of that addesses the actual question. I moved to original Cornwalls and Fortes a couple of years ago from B&Ws, Maggies, etc. But I would never call the move an upgrade. It is simply a different set of strengths and weaknesses. Are you willing to accept box and horn colorations in the midrange and upper bass in exchange for a certain ease, scale and sense of touch? There are clearly people who are, and those who aren't, and that is why the views on the Heritage Klipsch are so polarizing.
As far as being stuck in time, that criticism is probably spot on, the Klipschorn being in production longer, by far, than any other loudspeaker. The earliest models dating to the mid 1940s. It is the horseshoe crab of speakers, outlasting so much "high technology" that is now relegated to the scrap bin. It is a speaker for the ages; but certainly not the speaker for everyone, or even most people.

