On the GX-1B, in addition to the dedicated OD/DS block, you can select OD/DS as the TYPE for FX1, FX2, and FX3. This allows you to use up to four OD/DS effects at the same time.
On the GX-1B, in addition to the dedicated OD/DS block, you can select OD/DS as the TYPE for FX1, FX2, and FX3. This allows you to use up to four OD/DS effects at the same time.