"What difference does it make if the system sounds OK?"
A technical mismatch does not mean the results will not "sound good". Its a red flag indicating performance as intended may not be optimal. But nothing says optimal "performance" means best sounding to all. Optimal performance on paper is always a good omen though. The sound can always be tweaked to tastes to some extent once one has optimal performance but if not its possible that no tweaks might suffice.
Its more about the selection process and how to be in the best possible position to achieve satisfactory results more so than a question of what might sound good or best to any particular individual.
A technical mismatch does not mean the results will not "sound good". Its a red flag indicating performance as intended may not be optimal. But nothing says optimal "performance" means best sounding to all. Optimal performance on paper is always a good omen though. The sound can always be tweaked to tastes to some extent once one has optimal performance but if not its possible that no tweaks might suffice.
Its more about the selection process and how to be in the best possible position to achieve satisfactory results more so than a question of what might sound good or best to any particular individual.