Never...
I only experimented enough to know how to embed rightfully three audio basic system...
Many here are more talented and knowleadgeable in audio and gifted in craftmanship work...
I am not...
I only tried hard for many years to reach a relatively audiophile sound at low cost and i identified some problems others did not identify clearly as the triple embeddings controls at low cost and basic acoustic to optimize specific ears/ specific speakers/ specific room relation... Thats all...
I discovered against all odds or most opinions by experimenting that it is possible to reach good sound with all acoustic factors well optimized at relatively low cost...Most people dont think nor believe that , they are too much gear dependant and not enough interested in acoustic to experiment and study it a bit...Then they stay vulnerable to marketing and their experience is limited to a good or bad components synergy... They dont experience the impact of all three embeddings controls together if well done... Then only costly component upgrade make sense for them to improve the synergy between components ...
No acoustian bother themselves with price tag when they create a room for a specfic pair of ears and a specific pair of speakers, if the basic audio system is relatively good and synergetical to begin with ... Acoustician know that the sound source is the room/speakers and the ears inner filters and structure and the HRTF not the files, the vinyl, the R2R or sigma dac or tube dac etc nor the amplifier etc, all components like cables are only vehicle for some information going to the SOURCE of the sound experience which is acoustically all acoustic factors linked to the ears/head/speakers/room... Then playing with acoustics is more impactful in shaping the sound than changing a good amplifier for another good one in most marginal upgrade which are most upgrades...
Upgrading component work when for some level of price there is a bad synergy between components, it does not work anymore and easily when for some level of price you had good synergy...
And i prefer low cost system well embedded generally to higher costly one badly embedded ... Most people would pick the reverse choices..😊 I would be tempted too because i know how to embed any system at any price, acoustics dont change with price...
@mahgister
You cannot buy knowledge and we always pay for ignorance...
Good advise and worth repeating.
Have you considered a career in hi-end audio?