olieb
Addicted to Fun and Learning
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If there is a difference between two electrical signals at the output this can beMeasurements are important in helping us identify which products are engineered and designed well. Just don't tell me they all sound the same cause the measure the same.
1. one signal is stronger (level), this has to be taken care of by level matching
2. one signal has a different FR - this will be in the measurements
3. there is a difference in noise - this will be in the measurements
4. there is a difference in nonlinear distortion - this will be in the measurements
If all these differences are small enough [and well below audibility] then there is just no place for a signal sounding different but in your brain (from bias).
Yes, the science of electrical measurements is that good. And listening with proper control will show it.