T-Rex Replicator Tape EchoRecord , playback and erase heads, for true analog tape echoes 2 playback heads: One is tap tempo controllable, one is independently bypass able. Both will be off when the pedal is bypassed Head2 ? s delay time is dependant on the tape speed (delay time) and its effect on the sound varies with the delay time Easy tape cassette replacement (unscrew, pull the lever, take out casette, replace). Saturation: Drives the record head into saturation (led peak