What is the "dog which did not barked" in audio experience "crime analysis" scene ?
Often it is our own acoustical satisfaction which is not there.
--- Marketing of gear is often the assassin of common sense acoustics knowledge, the victims are the basic acoustics concepts and their parameters. The dog that did not barked is the absence of satisfaction by a great crowd of consumers in front of their system/room listening and reading "audio reviews" promising miraculous pieces of gear instead of informing us about the knowledge of the necessary controls over our own "room/system" experiences...
------ What are these controls of our own acoustical experience? they are the basics knowledge about the working dimensions of any system /room : mechanical (vibrations-resonance controls)electrical ( RFI-EMI controls- cleanliness,low noise levels etc ) acousticals (especially LEV/ASW ratio) DSP controls (via E.Q. tone controls,psycho-acoustics measures,filters,crossfeed and crosstalk controls, etc )
------ There is no such things generally speaking as a reproduction of a live event recorded by a trade-off set of choices of the recording engineer reproduced through playback recordings in your living room... There exist only an acoustic translation from a set of acoustics trade-off choices (recordings) to another set of trade-off choices which are controlled or uncontrolled (system/room/ears-brain) by the owner-listener.
--- Then there is no absolute good or bad recordings generally speakings (there is only specific extreme cases of these two ) in general no recordings conditions are the same and then experiences are different from the recordings acoustics conditions to the acoustics parameters of your system/room/ears-brain . Then speaking of audiophile recording which for sure exist is deceptive marketing or audiophile obsession, because on a well optimized and relatively good system all recordings sound different at all levels of good or bad...Then most recordings are acoustically "interesting" neither absolutely bad nor absolutely good generally when you own a relatively well optimized system/room...
------It is why even if upgrading is necessary and it is sometimes for us necessary to do so, and even possible for our own budget, the true wisdom is doing optimization before or in many cases instead of upgrading ...We must listen to which is our own system/room peak optimal working before knowing why and with what doing an upgrade... Many upgrades are unnecessary and costly...It is my experience from the last 25 years searching a good acoustic experience from my system/room...