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Quantity
1
Description
yesterday effect's latest original creation, color theory is an all-analog parallel processor available in eight different colors. it allows for two send/return loops to be mixed in parallel with an added phase inversion switch. with color ...
Reviews
5.0
2 ratings
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Useful and well made pedal
It does what it’s supposed to do and does it well. High build quality, a very nice looking pedal.
Comes in handy when taming over the top effects and getting different sounds from your pedals.
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eighteyedspy23 · May 2, 2026
Color Theory - Excellent
Yesterday Effects has a great set of pedals, having previously purchased their unit shifter, defiant, and ms20 filter pedals - I can attest to the fact that there is a lot of attention to detail in getting these pedals sounding pretty spot on. The color theory is super handy , offers a lot of flexibility, recommended.
