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Unique to the OPPO PM‐1 is the use ofa double‐sided diaphragm,
which allows us to place twice as many conductors within the
magnetic field and eliminate any passive return zones where the
conductors do not work. This results in the use of 100% of our
conductor le ngth, which
in turn results in greater efficiency. In
addition, our flat conductor pattern eliminates inductance‐related
intermodulation distortion, common with dynamic headphones,
andtheOPPOPM‐1’spurelyresistiveimpedancemeansthatsound
qualityisunaffectedbyaheadphoneamplifier’soutputimpedance.
TheOPPOPM‐1combineshighsensitivitywithlow
weight,allow ing
it to be used freely with portable devices without requiring
additionalamplification. Itscircumaural,openbackdesignprovides
the best in sound quality and comfort, and the overall rugged
construction ensures that the headphones can withstand
mechanicalandenvironmentalstress.
These aspects of the OPPO PM‐1’s design combine
to provide a
transparent,highlydynamicsoundthatexhibitswell‐balancedtonal
qualities with very little distortion, resulting in a listening
experience that is both free of fatigue and capable of
communicatingeverynuanceofyourfavoritemusic.
We are proud of the work we have done with these headphones,
andwehopetheybringyouyearsofenjoyment.
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