Where can I get a copy of the Rumble Stage/Studio v2.0 Manual Addendum? You can view and download the v2.0 Manual Addendum right here! Related articles Where can I get the expanded manual for the Rumble digital amplifier? Where can I get a copy of the Mustang GT v2.0 Manual Addendum? Rumble Stage/Studio Firmware Version Release Notes Where can I get the expanded manual for the Mustang GT amplifier? Are there foreign-language translations of the Rumble digital amp Expanded Owner’s Manual?