Set of internal sound dampening foam inserts for a pair of Bang & Olufsen Beolab 4000 types 663x active speakers.
These foam pieces are specifically designed to replace the original black foam pieces that are known to disintegrate and dissolve by airs moisture.
This set is a direct replacement for original part# 3332075 (Damping material).
Manufactured by Beoparts-shop.
One set covers a pair of speakers.