The four cable method allows the BOSS GX-100 to place effects both before and after the amp's preamp section. Use the following connections.
BOSS GX-100 | Quick Start | Four Cable Method
- Connect your guitar to the INPUT jack on the GX-100.
- Connect the SEND jack on the GX-100 to the INPUT jack on your amp.
- Connect the SEND jack on your amp to the RETURN jack on the GX-100.
- Connect the OUTPUT (L/MONO) jack on the GX-100 to the RETURN jack on your amp.
Refer to "Connecting the equipment" in the GX-100 Reference Manual for details on the SEND/RETURN jacks.