Why isn’t my S.B.G. passing any sound?

• Make sure you have connected everything correctly. See the diagram on page 5 in the S.B.G manual.
• Ensure the four jacks are connected correctly:
  • Connect the modular input source to the top left.
  • The mix output is produced from the bottom right jack.
  • The bottom left jack should connect to the external effect’s input (send).
  • The external effect’s output (return) should connect to the top right jack.