FV-500H Foot Volume Industrial-Strength Power Pedals For fourteen years, the famous BOSS FV-300 served as an industry-standard volume pedal. The tradition continued with the FV-50 series, but today the bar has been raised with BOSS’s new FV-500H (high-impedance) and FV-500L (low-impedance) pedals. These tank-tough diecast pedals are designed to meet the needs of the most demanding customers. The pedals offer a new stylish design, a road-tough build, and a comfortable, smooth action. Both models also provide an Expression output for use with expression-compatible amps, effects, and even synthesizers. Heavy-duty aluminum die casting body Ultra-smooth pedal movement for the utmost in comfort and control Adjustable pedal feel (torque) Pedal rubber is for comfortable play and non-slip action Expression pedal function Convenient tuner-output jack