for  (sampan 303, clipper, sloop, bisquine M2, goelette 325, ketch, surf, fun escadre, corsaire, cotre, doris, skiff, drakkar...) tweeter non inclus dans le prix -  Tweeter not included 

For information: A circular spacer is provided, it can be placed and held (glued) on the magnet in order to obtain the best sound reproduction.