As an engineer both MSME MSEE and CME your post is stupid.Is it stupid to insist on the importance of the acoustics?
An amplifier of 1978 or of 2020 can be very good and even on par in spite of the difference in design....The design science of amplifier is already good for the last 50 years...There is exception for sure, my Sansui amplifier design will be trespass by a Berning ZOTL for example....I dont negate improvement in engineering....
My point is acoustic is totally underestimated in the experience of most people.... This is my experience with audio....
More than 80 % of all threads in audio forums are about electronics....And the most important for Hi-Fi experience is the embeddings and first and foremost the acoustical embeddings....The electrical and mechanical one are important but comes after in superlative audible effects....The difference between 2 electronic components design is way less spectacular most of the times in my experience than a rightfully workings on the 3 embeddings mainly in the acoustical dimension....
If you dont know that I doubt that this is my post that is stupid, sorry..... :)
I cannot exhibit any letters after my title: lover of music and creative audiophile with homemade materials and low cost one.... :)