Interpreting graphs is another aspect that requires some insight. Try to audition a headphone even when plots suggest it may not be a headphone that might be suited to your circumstances/taste.
One should not evaluate a headphone solely based on plots alone as plots can only say so much and are taken with a perfect seal. This means one should look at the measurements being from a single unit with perfect seal with the intended positioning on the head/ears. Because of this the frequency range between 1kHz and 5kHz may be ‘under reported’ a bit.
The used test fixture does not have a pinna nor an artificial ear-canal. There can be sample to sample variations as well so other copies may differ here and there as well as have different L-R matching. Also seal (glasses, hair etc.) can change the tonal balance. Most headphones change sound signature depending on how they are placed on the head/ears. The most representative seating (as one would wear them) has been used/chosen. NOTE: The measurement plots are of one single unit (unless otherwise noted) and are not averaged over many different seatings on the test fixture. However, my measurements can still be useful. My measurements are made with imperfect (and cheap) microphones and pre-amplifiers, headphone amplifier and ADC/DAC which all have their limits that may well be reached before those of the measured device is reached.Īlso measurement programs have limits as does the oscilloscope and signal generators.
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