Why is science just a starting point and not an end point?

Let's take a trip back to 7th grade... the scientific method is:

• Make an observation.
• Ask a question.
• Form a hypothesis, or testable explanation.
• Make a prediction based on the hypothesis.
• Test the prediction.
• Iterate: use the results to make new hypotheses or predictions

Science cannot take a look through a telescope or have a bias opinion or distort facts to prove false theories.  Those are human activities. 

In term of sound, you can test for distortion, frequency response, rolloff, stored energy, and many other things that can indicate you have a problem.  The missing elements are time and perception or space between the sound that isn't measurable.   

So... to me science isn't letting you down it's your expectation of science.