It features true through-zero capability, meaning the modulated signal sweeps past a “zero-delay” point (like vintage tape flanging), allowing both positive and negative summing (thick sweep vs. hollow cancelation). It includes controls for Manual (base delay time, also controllable via expression pedal), Depth, Speed (also pedal-controllable), Mix, and Regeneration (feedback), as well as a footswitch to switch TZF polarity (positive/negative mode).