Jensen Spectrum 540 Complete Refoam Kit
This kit will fit Jensen models Spectrum 540 and more.
Check for correct dimensions.
Each Refoam Kit includes all the materials needed to repair four (4) midranges and two (2) woofers:
– Refoaming Instructions
– Four 3.25″ Foam Surrounds (F3-2)
– Two 12″Foam Surrounds (F12-2)
– Shims For Centering the 1.5″ Voice Coils for the Woofers
– Two 3.75″ Felt Dust Caps for the Woofers
– 1 Bottle of Specially Formulated Foam Surround Adhesive
*It can be difficult to refoam a speaker without removing the dust cap and inserting the plastic shims in the voice coil gap. 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.
3.25″ Mids
A – Outside diameter of the surround = 3.25″
B – Roll ends = 2.875″
C – Roll starts / O.D. of the cone = 2.5″
D – Inside diameter of the surround = 2.23″
Angled attachment to the cone
12″ Woofers
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 the cone