Because they have different ears and different brains, they would not use the same cabinets and drivers and crossovers. They would have to choose their own to achieve what they consider to be the "best" sound. That's what makes them the best in their field.
Speaker Design
If you take three speaker designers, say Dennis Murphy, Joseph D'Appolito, and Albert Von Schweikert and give them the same cabinet and drivers and tell them to design the crossover.
The question is will the three speakers sound the same?
How do you think they would sound differently and in what areas would they sound alike?
The question is will the three speakers sound the same?
How do you think they would sound differently and in what areas would they sound alike?