NUX TAPE ECHO uses Core-Image technology to capture these characteristics. NUX TAPE ECHO offers all the essential knobs like BASS, TREBLE, TIME, REPEAT, LEVEL, REVERB and SELECT (repeat pattern) for quick tweaking. SHORT PRESS and hold the SELECT knob to enter ALT TWEAKING for SATURATION, WOW, FLUT, KILL DRY, EXP. (Use Foot Switch for self-FEEDBACK ) Repro-Tape Heads combination. Keeps the controls of the original hardware, and adds some for modern workflows. Use the SELECT knob for various head combinations, TIME for timing control, and REPEAT for repeats and self-oscillation. New features include BPM(Sub-division)/MS switching, and TAP TEMPO. Spring Reverb brings psychedelic Slapback & Ambience. The important characteristic of Classic Echo is the spring reverb. Core-Image technology captured the natural spring reverb sound, combined the warm and organic delay, TAPE ECHO gives you lush echoes. SOS mode Press ON and TAP footswitches simultaneously to enter SOS mode(looper). In the meantime, ON footswitch can do REC/PLAY/DUB as phrase looper function. The display will show you current status. During loop playing, you can press ON and TAP footswitch to quit SOS mode, the loop will keep playing. You can change the parameters and reenter to SOS mode. Editor You can assign the MIDI settings through editor. MIDI in-out Jacks TAPE ECHO includes 3.5mm TRS/MIDI adaptors for MIDI IN / OUT functionality. It’s a versatile and compact tool for modern guitarists looking for retro echo sound.