... level and powerful High quality,low price Neodymium Iron Boron Speaker MagnetsGeneral Introduction 1, Our high level and powerful neodymium ... speaker magnets meet hundreds of speaker requirements. 2, Besides producing ferrite speaker magnets, we are providing powerful ... magnets of dimensions of 0.4mm x 0.2mm and wall thickness of 0.2mm to 0.3mm 3. 19 R ...