The slide switch on the bottom left side of the module is marked "LEFT-RIGHT." Position the switch to "LEFT" for left channel function and RIGHT for either right channel or MONO function. (If used for mono operation there will not be a corresponding "L" module.) 932 modules in the Front Speaker Product Group are unique in the fact that they share the same GROUP Address with the receiver group. For example, if the Receiver Product Group number is "4", then the Front Speaker Group number would al

The slider switch on the left side of the module is marked “L” and “R”. Position the switch to “L” for LEFT channel function and toward “R” for RIGHT channel or MONO function. (If used for mono operation there will not be a corresponding “L” module.) Also 930 modules are unique in the fact that they share the same GROUP Address with the amplifier group with which they operate. For example, if the front amp product group number is “4”, then the front speaker group number would also be “4”. Finall

934 modules share the same GROUP Address with the receiver group (if present). For example, if the Receiver Product Group number is "4", then the Speaker Group number would also be "4". Powered Speakers Position #8 934 Powered Speaker Selector Audio^^Authority* Tech Support USA and Canada: 800-322-8346 (Mon-Fri 8:30 AM to 5:00 PM Eastern Time) Phone: 859-233-4599 Fax: 859-233-4510 Hookup drawings and FAQ http://www.audioauthority.com