Diamond Church Street ChorusPT2399-Based Tri-Chorus

From the vendor

Tri-Chorus is one of those classic studio rack effects. It's a stereo effect that utilizes three delay lines (duh) that are modulated to produce three distinct chorus voices. The voices are all modulated 120 degrees out of phase with each other, which creates a big, lush stereo field on the resultant signal. The 120 degrees out-of-phase thing is what makes the tri-chorus such a difficult effect in the DIY world. If we use opamps to create phase differences, any phase difference besides 180 degrees is going to make for a frequency dependent filter. The Diamond Church Street Chorus (named after a great song by one of my all time favorite bands) uses modern technology and low cost delay chips to create a tri-chorus that, while certainly not up to a high end rack unit, still gives a good attempt at the sound in a project that is doable for most DIY'ers. Perhaps the largest limitation is the