voice coil for pa speaker
低音接導音圈
常見pa音圈内徑尺寸為45mm~126mm
products details
兩層兩出頭，低音接錦絲綫引出作法。
bobbin: titanium鈦箔
綫材:1-eisvw銅綫
補强紙：白色spunlace
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