The original KEF EGGs were such a massive hit each had at least one sub gen revision e. g. the 1001s were followed up by the 1001.2s while the 2001s were followed up by the 2001.2 then the 2001.3 while the top tier 3001s were followed up by the 3001SEs.

the changes between the latter two larger lines were more obvious with the 2001s featuring a soft dome then moving on to an aluminum dome while the 3001s started with a bare aluminum dome then added the tangerine waveguide.

the changes between the 1001s and the 1001.2s were virtually invisible beyond the new black and white color options but are apparent in this video that much more was changed than just a crossover tweak.

Whatever the changes were resulted in the 1001.2s no longer having the occasional raspiness that the original had and thus sounded much smoother.

you can see that the driver magnet structure is entirely different where one of the domes is extremely magnetic while the follow up was only slightly magnetic along the outer rim.

i just thought this was interesting.

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