Nev. Rev. Stat. § 78.3791
Except as otherwise provided by the articles of incorporation of the issuing corporation, a resolution of the stockholders granting voting rights to the control shares acquired by an acquiring person must be approved by:
2. If the acquisition would adversely alter or change any preference or any relative or other right given to any other class or series of outstanding shares, the holders of a majority of each class or series affected,
excluding those shares as to which any interested stockholder exercises voting rights.
(Added to NRS by 1987, 758; A 1991, 1236; 1999, 1589; 2001, 1372, 3199; 2003, 3098)