JBL 312G-1: 12 inch Refoam Kit (F12-2)


Fits models Radiance R123 and more. Woofer part # 312G-1.
A – O.D. of the surround = 11.5″
B – Roll ends = 10.625″
C – O.D. of the cone = 9.44″
D – I.D. of the surround = 9″


JBL 312G-1: 12″ Refoam Kit

This is the correct kit that fits on the JBL Radiance R123 and more.  Woofer part # 312G-1.  It has a flat attachment to cone. Check for correct dimensions.

Each Refoam Kit includes all the materials needed to repair two (2) woofers:
– Refoaming Instructions
– 2 Foam Surrounds
– Shims For Centering the Voice Coils
– Two 3.2′” Paper Dust Caps
– 1 Bottle of Specially Formulated Foam Surround Adhesive
1 Bottle of Black Dust Cap Glue (To retain the original JBL look)

*It can be difficult to refoam a speaker without removing the dust cap and inserting the plastic shims. The plastic shims are used to center the voice coil and cone assembly while the speaker is being refoamed. If you do not use the plastic shims, the voice coil may be off center and it may lead to the voice coil rubbing.

A – Outside diameter of the surround = 11.5″
B – Roll ends = 10.625″
C – Roll starts / O.D. of the cone = 9.44″
D – Inside diameter of the surround = 9″
Flat attachment to cone

Weight 0.6 lbs
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