Yes. One could use EQ in lieu of tubes to warm up playback, however, in my limited experience with EQ devices (Audio Control and Behringer), these units affect transparency by reducing ambient cues. If chosen carefully, tubes are more transparent than an EQ device in the signal chain.
Clearly, two speakers can have flat frequency response curves and sound completely different because of the differences in their drivers, crossovers, cabinets (or lack thereof), or any number of other factors.
I'm going to pass on commenting about your definition of fidelity.
I tend to agree with Newbee that this thread will soon be affected by entropy, so I'm going to move on before I get thrown off this carnival ride...
Clearly, two speakers can have flat frequency response curves and sound completely different because of the differences in their drivers, crossovers, cabinets (or lack thereof), or any number of other factors.
I'm going to pass on commenting about your definition of fidelity.
I tend to agree with Newbee that this thread will soon be affected by entropy, so I'm going to move on before I get thrown off this carnival ride...