Roger Linn AdrenaLinn Guitar Multi Effects Pedal Amp Modeler Drum Machine PreownedWelcome to All Music Inc! Right now, you are looking at a great piece. This is a Roger Linn Design AdrenaLinn Groove Filter FX Amp Modeling Drum Box Guitar Multi Effects pedal. It's a sequenceable filter, and amp modeler, AND it's a drum machine?? It's the AdrenaLinn! The AdrenaLinn is the first product from Roger Linn Design. A mono in, stereo out effects processor in a stompbox format but is unusual that it includes a simple drum machine based on