<page_title> Bose 2.1 home entertainment systems </page_title> <section_title> 3-2-1 </section_title> <table> <cell> AV321 & AV321GS <col_header> Model </col_header> <col_header> Inputs </col_header> </cell> </table>
Bose 3-2-1 two versions are 321 and 321 GS.