JBL 4.9" Control 1 Speaker Foam Surround - Con49

Single piece foam surround Some of the models that use this foam include : JBL Control SB1, PRO 3, J520, MR25, Control 1 and others that match the measurements shown Same American-made surrounds that we use in our professional repair facility; NOT cheap Chinese copies!! Surround Con49 Outer Diameter 4.9" - 124mm Outer Roll Diameter 4.125" -105mm Cone Diameter 3.44" - 87mm Inner Diameter 3.15" - 80mm Roll Width 3/8" - 10mm Inner Attachment Angled How To Center Your Voice Coil Using Smartphone or Tablet