The Echo Fix EF-P2 is a real Spring Reverb pedal that packs a huge sound into a small enclosure. The EF-P2 features a three-spring reverb tank, adjustable Spring Drive, Bass / Treble EQ controls, and Reverb Volume control. With a footswitch for reverb bypass and also a direct signal mute footswitch, the EF-P2 can also be used as an outboard effect in recording studios. With increased voltage rails for studio use, the EF-P2 can accept line level inputs from synths and other audio devices, not just guitar.