@Mike Lavigne
I know you have a lot to say on this Mike, what is Mature. Do we have a thread on that?
never seen one, but lots of system building threads. really same thing, just that 'mature' indicates a certain degree of destination/fulfillment of intension. some degree of time lived with and multiple minor/major niggles sorted thru. gear broken in and settled. sorted.
Who decides what is mature. A dealer. A enthusiast.
easy to recognize a mature system when the owner seems satisfied with it over time. it's more the viewpoint of the user, than anyone else. i suppose maybe we use mature talking about higher level involved systems that do have rigorous levels of comprehensive cohesive attention.
What is mature? If a dealer sold me a system and set it up properly in my room, is it a mature system?
Do I have to have a dedicated room with all sorts of treatments or design elements to be mature.
Do I have to have all my electrical done right to be mature.
Do I have to use filters to be mature.
Do I have to have a level of speaker, amp, cables to be mature.
Could I just have a CD player and be considered mature.
none of that. no specific things. more that within the intended level of gear and source efforts they are optimized and have bases covered. but there is a wide range of valid opinions on what does that exactly mean.
The concept does tie into, how do you compare components. If your speakers are set up poorly in a room, how are you going to know what is a better amp? If your server sucks, did the DAC actually improve something or does it just filter noise better. A new server may make the old DAC sound better than the replacement. If your amp is not right for the speaker, maybe your selecting a preamp with to much gain to make up for the loss of power in the amp.
the question is whether the owner has confidence of a solid reference and getting truthful results. not anything specific.
the term mature.....or sorted.....just indicates serious efforts of system building has reached a good spot. so the gear in that system can be counted on to be optimal.
We can get into specifics of particular aspects of a system and say that the power grid is lacking, or the room is suspect, or the cables are not synergistic or really anything like that is not yet figured out and that this or that part still needs work. Is it then not mature, or not as mature as it could be?
Sure.
conversely a system still in flux where there are questions of synergy and ancillary pieces still getting figured out are not mature. that takes time to get figured out and months/years of listening and small adjustments applied. i think we know when our systems are where we like them to be. that they have arrived. not that we don't still pursue better, but that we feel right with them.
i do think that within each system building philosophical silo there are different viewpoints on what elements constitute mature. not one size fits all.