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The high quality diaphragms used in PIYANO driver units are specially
shaped. Re-inforced phenolic diaphragm with precision voice coil with
captain, paper bobbin for good heat dissipation. We have two models. One
is self centered Golden and another uncentered Silver. Our
diaphragms are known as best quality in P.A Industry. Due to the wide
frequencyresponse and reliability.
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