LSA Voyager GAN Amplifier

You are of course correct. Literally. Sound literally cannot be measured. This is just a fact. But it is a fact many of us miss because we confuse and conflate sound with pressure waves.

Pressure waves we can measure. This is literally what we measure with dB, pressure waves. When pressure waves reach a human ear they can sometimes be perceived as sound. Sometimes, because frequency or amplitude may fall outside human perception. But this is the key to understanding, hearing sounds is a human psychological perception. Physical measurement of pressure waves is not.

People who fail to grasp this crucial point are perpetually puzzled and unable to answer the simplest question: If a tree falls in the forest and there is no one there to hear it does it make a sound? This is not a trick question. The answer is NO! The tree falling vibrates the air. Vibrations in air are not sounds. Human beings hear sounds. Microphones do not. 

This is so obvious, it should be Audio 101. Instead, look how many pretend to be audiophiles while not even understanding this most basic concept. 

abraxalito

Nonsense, ears are enjoyment equipment. If you want tests, use man-made test equipment.

Correct, amps need test and measurements and all the laws of electronics the best applied combination of all three which will make them work at their best, without them you have a serious pile of junk!!

Andy

People who fail to grasp this crucial point are perpetually puzzled and unable to answer the simplest question: If a tree falls in the forest and there is no one there to hear it does it make a sound? This is not a trick question. The answer is NO! The tree falling vibrates the air. Vibrations in air are not sounds. Human beings hear sounds. Microphones do not. 

Absolutely correct. Ironically (or even tragically) Ethan Winer in the opening chapter of his book 'The Audio Expert' claims that the answer is 'Yes'. So much for audio experts!

Isn't there findings audible, and is it possible/probable that there was an issue with this amp, and shouldn't they have inquired to LSA? 

Tweakie Ric says trust your ears but what he really means is trust his ears because only he knows what sounds better and best. All his money making self promoting tweaks that take an amp to an 11 are all done without any basis in objective reality- he preaches "everything makes a difference" yet nothing he does can be measured- just "trust him" and his magic ears that everything he thinks is an improvement will be an improvement to all.

Yes, experiments have been done which show that certain measurements can in fact be indicative of the perception of sound. Certain distortion harmonics are generally preferable over others, for example. The job of an amplifier is to reproduce the input at the output as accurately as possible, only larger. Measurements provide an indication as to whether or not the amp is doing it's job. Some people can tolerate or even prefer certain distortions, others want an amp that delivers the input as accurately as possible. Tastes differ but the only people that claim measurements are meaningless and their golden ear is the only arbiter of truth are usually those trying to sell something, like Tweakie Ric.