the specification conforms to the product and its use. The cones or spikes are of good quality and significantly improve sound quality. The cones must be installed with double scotch pads but it is possible to fix them using a screw (must be removed from the end of the tip, put the screw in the base of the cone, screw the assembly into the enclosure and replace the cone). Indeed, to quote the opinion of ugab60 it takes a little patience to have spikes on the tips cons when alone but it is true that in the end, from an aesthetic point of view, this is really class . Overall I recommend this product and seller Conrad.
