GX-100: Can I connect a bass guitar to the GX-100? May 11, 2026 00:18 Updated Follow Yes. The GX-100 supports both guitar and bass guitar input. Before playing, select "BASS" as the input type and adjust the input sensitivity to match the output level of the bass guitar.Refer to “Configuring the input to match the instrument you connect” in the GX-100 Reference Manual for how to set the input level. Related articles GX-100: Differences between the GX-100 and GT-1000 GX-100: There is no device name in OUTPUT SELECT corresponding to the device I want to connect. GX-100: Can I use an acoustic-electric guitar with the GX-100? GX-100: EXP 1 switch indicator does not light up when the expression pedal is pressed GX-100: Is the GX-100 compatible with the BOSS GT series?