XVIVE V21 Echoman Vintage Pure Analog Delay Guitar Effect PedalThe Xvive V21 Echoman Vintage Pure Analog Delay guitar effect pedal. Echoman uses two Xvive BBD3005 chips, classical analog circuit sound, 600 ms delay time, with Chorus Vibrato modulation effect, to add a deeper atmosphere to your sound. With FEEDBACK , Time Knob , more effect can be brought out. XVIVE Audio proprietary chip design ( MN3005 BBD). Up to 600 msec of delay time with no aliasing distortion. Buffered bypass with a 900K input impedance