Modeled after authentic warmth of vintage onboard tube units, the Subdecay Super Spring Theory Reverb captures organic analog tone in a modern package with a few twists. Building on the standard model, the Super Spring Theory incorporates a redesigned preamp and JFET amplifiers along with an internal reverb trim pot for improved performance with hotter rigs. Along with the better performance, this pedal brings in a new Room setting in addition to the Spring for subtle ambient tone along with a Trails switch for sculpting huge, sweeping tone.