What audio company doesn’t upgrade and offer new development? The Harbeth 40 series is not outdated or obsolete at any series level. Each iteration is different but not improved iMO. One may prefer a series that’s older. Your equipment, room, and personal taste is the determining factor. If you don’t own a pair of 40s and want new only then 40.3 is your only option once AE’s are sold out. .2- .2AE or .3 are all just amazing. You simply cannot go wrong, as differences as all so small.
I’m glad Alan has created them and will never be without my set.