The price is per pair.

This upgrade kit fixes a number of issues and greatly improves the quality of the crossover over the stock network.

The kit includes all of the necessary crossover parts, along with wire, solder, heat shrink and a set of tube connectors.
A new crossover/mounting board is not included.

Bass-Alignment Filter: B&W’s “bass-alignment filter” is compatible with our upgrade, as it only addresses frequencies below 100Hz. however we do not recommend it as it is more of a “band-aid” than an actual fix for poor room acoustics, while also robbing clarity from the midrange and treble.