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    Mylar Speaker-- Size: 50mm-57mm 
Part No. SP50-08-5L5.5-M3B-R
Description Size Diaphragm Magnet Type Power
  (Rated / Max.)
Resonant Frequency (Fo) Frequency Response
Ø50mm Mylar Speaker Ø50mm/5.5mm(H) Mylar Internal-NdFeB 0.25W / 0.5W 400Hz Fo 〜  4kHz

Part No. SP50-08-5L8-M2B-R
Description Size Diaphragm Magnet Type Power
  (Rated / Max.)
Resonant Frequency (Fo) Frequency Response
Ø50mm Mylar Speaker Ø50mm/8mm(H) Mylar Internal-NdFeB 0.25W / 0.5W 300Hz Fo 〜  14kHz

Part No. SP57-08-5L8.2-M5B-R
Description Size Diaphragm Magnet Type Power
  (Rated / Max.)
Resonant Frequency (Fo) Frequency Response
Ø57mm Mylar Speaker Ø50mm/8.2mm(H) Paper Internal-NdFeB 0.25W / 0.5W 400Hz Fo 〜  17kHz

Part No. SP57-08-5L8.2-M8B-R
Description Size Diaphragm Magnet Type Power
  (Rated / Max.)
Resonant Frequency (Fo) Frequency Response
Ø57mm Mylar Speaker Ø50mm/8.2mm(H) Mylar Internal-NdFeB 0.25W / 0.5W 350Hz Fo 〜  14kHz


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