Audio Damage BigSeq2 Upgrade From BigSeq1 - Manual (Page 15)

The SEND knob controls how much of the signal entering the Delay effects block actually passes through the
delay itself. The input signal is always sent to the output of the Delay block without attenuation, so the SEND
knob acts like an effects-send or aux-send knob on a mixing board. If the SEND knob is turned all the way
down to zero, you won’t hear any delayed signal. Note that you can use the Delay’s Modulation Sequencer to
control the SEND knob, routing more or less of the signal to the delay with each step.
Distort
The Distort effects block has two different distortion processors, named
Fuzz and Warp, connected in series (one after the other). Each
processor has a single knob.
The Fuzz processor is based on a model of a vintage distortion pedal
popular with many guitarists. The FUZZ knob controls the intensity of
the effect. Fuzz is perhaps most interesting at lower settings of the
FUZZ knob, where it imparts a somewhat grainy distortion to signals
regardless of their level. As you turn the knob up the distortion effect
becomes more extreme. Note that the Fuzz processor always distorts
the signal even when the knob is turned all the way down. (Obviously
you can turn it off altogether with the Gate Sequencer.)
The Warp processor, technically speaking, distorts the signal by using a
sinusoid as a non-linear transfer function. In less technical terms, it
makes odd noises by wrapping the signal around a sine wave. It creates
harsh distortion that can sound like hard clipping, or add metallic-
sounding overtones somewhat like ring modulation. The WARP knob
varies the frequency of the sine wave, and hence varies the timbre of
the distorted signal.