For fourteen years, the famous BOSS FV-300 has been the industry standard volume pedal.
The tradition continued with the FV-50 series, but now the bar has been raised with the new BOSS FV-500H (high impedance) pedals.
These rugged and durable pedals are designed to meet the demands of the most discerning players.
They feature a sleek new design, solid construction, and an ULTRA smooth, comfortable action.

Both models also provide an expression output for use with amplifiers, effects, and even synthesizers that support expression.
Die-cast aluminum, sturdy housing
Ultra-smooth pedal movement for maximum comfort and control
Adjustable pedal feel (tension)
Non-slip rubber feet for stable playing.
Expression pedal function.
Convenient tuner output jack.

Available in both "H" (High Impedance) and "L" (Low Impedance) versions. The latter is intended for guitars with active pickups or preamps.

- If you want to use an effect or TU-2/TU-3 before the FV-500, choose the low impedance model (FV500L).
- If you want to connect a guitar with passive pickups directly to the FV-500, choose the high impedance FV-500H.
- If you want to connect your guitar with active pickups or active preamp directly to your FV-500, choose the low impedance FV-500L.

These guidelines will help preserve your instrument’s original tone and avoid hum caused by the power supply.

The term impedance often comes up when discussing connections between electronic devices, especially guitars, amplifiers, and effects. IMPEDANCE refers to a specific electrical characteristic—resistance and inductance of a circuit to an electrical current. The terms "High" or "Low" impedance are commonly used when referring to inputs or outputs of electronic devices.