Used Walrus Audio Fundamental Reverb Effect Pedal

Add spacious ambience to your rig with this used Walrus Audio Fundamental Reverb in great condition. Designed for easy, great-sounding tones, it offers versatile reverb voices with intuitive controls for mix, decay, and tone, letting you dial in everything from subtle room to lush atmospheric washes. Built in a compact pedal format with standard instrument in/out and 9V DC power (center-negative), it’s a reliable, gig-ready reverb for guitar, bass, or keys.