About Desert D
Desert D is a stereo dimension chorus: two bucket-brigade delay lines, one per channel, swept slowly in opposite directions, a compander around each, and an output matrix that adds each line's copy to its own channel and subtracts it, above 160 Hz, from the other. The effect lives in the difference between the speakers rather than in either of them, so a sound gets wider and a little deeper and nothing else seems to change.
None of it is a chorus tuned to sound like one. The delay lines are true bucket brigades, 1024 stages clocked at 40–100 kHz, so when the LFO speeds the clock up the pitch moves by the same physics as an analog line. The compander is a feedback compressor and a feed-forward expander built stage by stage, which is where the faint grit on transients and the breathing come from.
The front unit is four mode buttons, DOUBLE and POWER. Below it, a lower panel adds everything else, and every control there rests at the front unit's own setting, so an untouched Desert D sounds exactly like its four buttons.
