Boston 5 inch Refoam Kit (F5-1)


Fits HD5, 525X, 525V and more.
A – O.D. of the surround = 5″
B – Roll ends = 4.625″
C – O.D. of the cone = 3.875″
D – I.D. of the surround = 3.6″


Boston 5″ Refoam Kit

This kit will fit many Boston 5″ speaker models that have an angled attachment to cone. Check for correct dimensions. These are very unique surrounds because the angled part that attaches to the cone is straight. See close up of the picture to see.

Model #’s include:
– HD5, 525X, 525V (center channel) and many more.

Each Refoam Kit includes all the materials needed to repair two (2) woofers:
– Refoaming Instructions
– 2 Foam Surrounds (F5-1)
– 1 Bottle of Specially Formulated Foam Surround Adhesive (strong and sticky to bond on the poly cones)

*We recommend hand centering this woofer instead of shimming the voice coil when replacing the foam surround. When the glue is still tacky you can move the cone up and down. If you feel or hear the voice coil rubbing, just keep moving the cone assembly until it is free of rubbing.

A – Outside diameter of the surround = 5″
B – Roll ends = 4.625″
C – Roll starts / O.D. of the cone = 3.875″
D – Inside diameter of the surround = 3.6″

Weight 0.5 lbs
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