FM4

The Line 6 FM4 is a filter modeling effects pedal that provides a range of classic and modern filter sounds for music equipment setups. This stompbox offers 16 modeled filter, synth, and vocoder effects, featuring controls for Frequency, Q, Speed, and Mix to shape filter response and modulation. The four footswitches enable instant access to user presets, while the expression pedal input allows real-time control of parameters such as filter sweeps or mix balance. The FM4 features mono input and output for streamlined connection with pedalboards and rack systems. This unit operates with true bypass circuitry to preserve signal integrity when disengaged and is compatible with bass instruments. **Key Features:** - Filter modeling effects pedal with 16 filter, synth, and vocoder models - Four programmable footswitches for instant preset recall - True bypass switching - Expression pedal input for real-time parameter control - Mono input and output - Compatible with bass instruments