MAG - Magnetic tape echo, warm and rich.  The MAG mode captures the frequency response of the tape heads and preamp of a vintage tape delay.  The Mod knob controls the "wow" or "flutter" of the tape.  Each delay repeat loses both treble and bass, for a warm and compressed sound.  The Tone knob controls the age of the tape, making the echo brighter or darker.

BBD - Analog delay, murky and wet.  The BBD mode is based on a classic solid-state analog echo.  This mode is capable of infinite repeats for the classic analog delay "spaceship" tone.  The Mod knob adds analog chorus or vibrato.  The Tone knob controls the analog delay filter.

DIG - Digital delay, bright and present.  The DIG mode captures the sheen and clarity of the early digital delays.  Each repeat sounds just like what you put in, with the classic digital "clang" you will either love or hate.  The Mod knob adds wide-ranging pitch modulation, be careful!  The Tone control sweeps the delay between low-pass and high-pass filtering for a wide range of delay tones.

LOFI - How can we put this?  This mode sounds terrible.  Don't use it.  It's all dirty and grungy and sounds like you're playing through a payphone or an AM radio.  Roll the Tone control down to clean things up a little, or crank it for minimum fidelity.

The Quadrant features a buffered bypass using a soft-touch footswitch.  The dry signal path is analog, to maintain your tone no matter how much delay you add!  The bypass signal is 100% analog.

The Quadrant features an innovative new feature - AutoTrails.  Some delay pedals cut the delay signal off as soon as you hit the footswitch - that sounds odd and unnatural.  Some leave the delay signal on all the time - that's better but you still get the noise from the delay signal even when you're not playing.  We give you the best of all worlds by letting you choose how long the delay trails persist, from instant-off to always-on.  When you bypass the Quadrant, the delay signal persists and then fades out smoothly after a time you set.  You want no trails?  Trails all the time?  No problem.  Set it any way that fits your playing style.