How do I get help with an issue with the Rumble digital amp? Use the Submit a Request link at the top of this page to send a message to our Customer Support team. Related articles How do I record to my computer using my Fender Rumble digital amp? Rumble Stage/Studio Firmware Version Release Notes Where can I get the expanded manual for the Rumble digital amplifier? How to update the firmware on a Mustang GTX, GT or Rumble amplifier What is the Rumble digital bass amplier?