Guitar Pedal X - GPX Blog - Old Blood Noise Endeavors's ingenious Float Dual Moving Parallel Stereo Filter takes the Filter Pedal Format to new heights
NPD - Electro Harmonix Tri Parallel Mixer : r/guitarpedals
Electro Harmonix Tri Parallel Mixer – Thomann UK
Mix-Blender - Radial Engineering
Electro Harmonix Tri Parallel Mixer – Thomann UK
Guitar Pedal X - News - Best of Compact, Medium and Large Parallel Mixer Pedals