Where can I get the manual for the Rumble LT amplifier?* You can view and download the manual right here! Related articles Where can I get the manual for the Mustang LT amplifier?* How to update the firmware on a Mustang GTX, GT or Rumble amplifier* Are there foreign-language translations of the Rumble LT Owner’s Manual?* Where can I get a copy of the Rumble LT Quick Start Guide?* How do I update the firmware on my Mustang LT or Rumble LT?*