Let me try and a explain this from a mixing point of view and it illustrates how Linn hit sweet spot and were the dog's danglies until music production caught up with them. When people talk about "prat " what they really mean is "the preservation of the leading edge of notes without any smearing artefacts". When the Linn first hit the market analogue was king and tape's inherent problem is capturing transients, particularly large dynamic swings involving them. When people talk about analogue "warmth" the immediate assumption is it is related to the low mids and bass end and it isn't. it's actually the opposite, digital source merely give you a far more accurate representation of the top end and this "masks" the lower frequencies because of how our ears work and make it sound "cold" for want of a better term.
Remember how Linn/Naim used to big up the the LP12 as "the best way to hear a rimshot"? That was true because the Linn and Naim kit is "voiced" to add that sheen. That was a brilliant trick until mixing technology caught up and suddenly, what was once a boon turned into a bit of nightmare. Where the Linn/Naim kit had added a certain euphony to the sound that it benefited from, all of sudden, it was now seen to over emphasise those parts of the mix.A classic example of this would be Trevor Horn's mix for the Yes album 90125. It can sound , well let's say, "a tad shouty" on a Linn, as Horn had worked out how to capture huge transients without any smearing of them on tape. Thus, the voicing of the Linn moved from being a positive advantage, to a bit of an issue. "Owner of a Lonely Heart" on a LP12 with Linn arm and cartridge through a Naim amp into Linn Kans is probably listed under the United nations definitions of "torture and unusual practices".
One of the reasons so many early digital recording sound so bright is because, engineers with vast experience were still cranking 12-15 db of gain from 7khz upwards on pretty much every source on their desks as that was "learned practise". John Lennon used to insist of them driving the Abbey Road "bright boxes" with 12db+ of gain on his voice or he wouldn't be happy. Most people in the digital domain these days, initially often cut a fair bit of top end then reintroduce it later in the mixing chain so it's under their control. That's why cymbals were all but banned in the 80s, to achieve the level of transient attack and weight in a drum sound, you couldn't slam them , even using parallel techniques of compression without the cymbals totally dominating the sound. The answer, ...don't use cymbals. If you wish to ruin your ears go have a listen to the original CD release of Zeppelin 4 and the song "Rock N Roll", the cymbals....argh
Back to Rick Beato, he recently did a recreation of the acoustic guitar tone on "Ramble On||" and lo and behold Page, though owning a myriad of Martin acoustics used the 30 quid bolt on neck generic acoustic for what has become a "landmark tone". Why you ask? The answer is, in the context of 1969 recording, the cheap guitar sits exactly in the right frequencies whereas, the expensive and "better guitars" simply don't.
The upshot of this was, by 1984-85 Linn knew they had to change some components to remain on their perch or risk losing a generation of acolytes.