SRL for [diversifying]: Some of Sansui 's fellow audio - specialty companies , such as Aiwa Co. and Pioneer Electric Corp. ... or by [diversifying] into other consumer - electronics fields , including laser disks or portable cassette players .
ARG-1: Some of Sansui 's fellow audio - specialty companies , such as Aiwa Co. and Pioneer Electric Corp. | ARG-2: into other consumer - electronics fields , including laser disks or portable cassette players