Speaker Magnet Speaker Magnets are used to manufacture speakers that can supply all sizes from 32mm to 330mm.OD 134 x ID 60 x Ht 20OD 155 x ID 60 x Ht 20OD 190 x ID 90 x Ht 25OD 190 x ID 90 x Ht 20OD 220 x ID 110 x Ht 25 Get Quotation