Jam Pedals engineered the Eureka to merge the singing, dynamic mid-range of germanium fuzz with the gritty, full-bodied character of classic Muff-style distortion. Using silicon transistors in a proprietary design, it delivers the best of both worlds—a versatile fuzz that plays beautifully with any effects, guitar, or amp while maintaining its distinctive personality. The three-way toggle switch incrementally adds low-end, making it easy to dial in the perfect tone for single-coil or humbucker guitars, or push extra grit for solos. Engage the gated-fuzz response for a strong input signal for dramatic, articulate attack. A true workhorse fuzz pedal that stands out in any rig. This pedal is in good condition and comes with a box.