Well, that was a frustrating experiment. I have an old Kindle Fire and on OTG (on the go) cable, think, USB on one end, and micro-B on the other. I also have a Fender Superchamp X2 tube mp with a USB port that can be configured from a computer. The problem is that the application runs on a combination of Flash and Silverlight, which Microsoft killed off. Fender has a new generation of amps that run via bluetooth connectivity. You can adjust all amp settings on the new ones with your phone but they have no Windows or OSx application available. So, unless you have a Windows tablet or something larger you are squinting at the screen to change settings on the new ones, and the old tube amps are SOL if Fender Fuse ever stops working on Windows or OSx. My older Fender amp is a tube based amp in addition to having access to Fender preset models- so best of many worlds in a lot of cases, and a step back in my opinion, for Fender to not make the Superchamp X2 in a new version alongside their modeling amps that has bluetooth to access the amp settings from a distance. Im looking at is from a performer POV, though I don't perform anywhere. Tube amp with wireless access to settings so you can change settings on the amp without having to walk across stage! They still actively sell the Superchamp X2, also- they just haven't supported the application that runs with it for almost 4 years with any updates or anything. Its basically a user only platform, now, with users creating any presets. Fender also hasn't released the source for it for any further development by the community. Anyway, Kindle Fires don't have host access mode enabled on them, so you can't use them as a cheap alternative to a Surface or something similar to control the amplifier. So, to control the older amps, that sound better in many ways, you have to have a laptop, Android based tablet, and a really long cable, and to control the newer ones you only have phone/tablet based control, but the amp itself is completely computer- no analog/tube signal. There are a lot of players that really like tube amplifiers and its sad that you can still get parts and support from Fender for old tube amps like Princetons, Hotrods, etc, but the Superchamp is like a forgotten stepchild in the family. They sell it, but the app that runs on it is in danger of someday never working again should Windows ever stop recognizing it.