 "Cambrian"s main armament consisted of three BL 6-inch (152 mm) Mk XII guns that were mounted on the centreline.One gun was forward of the bridge and the last two were in the stern, with one gun superfiring over the rearmost gun.Her secondary armament consisted of six QF Mk IV guns, three on each side, one pair abaft the bridge on the forecastle deck and the other two pairs one deck lower amidships.