Legendary spring reverb with overdrive circuit in Eurorack format. Classic analog spring reverb effect from the 1960s. Authentic reproduction of the original Grampian Reverberation Unit Type 646 circuit. The legendary vintage reverb sound of the king of spring reverb devices, as heard on countless records. Two mechanical springs provide signal reflections for a rich and dynamic spatial emulation. Overdrive circuit for warm analog distortion of the signal before entering the spring reverb. Total reverb decay time of approximately 2 seconds. Wet/Dry mix control for adjusting the reverb effect. Remotely switchable input to mute the reverb path. Microphone and line inputs with high/low line inputs for flexible routing. Complete Eurorack solution - the main module can be mounted in a standard Eurorack case.