The EHX Holy Stain is Electro-Harmonix’s first multi-effect pedal, a powerful and inspirational hybrid that pairs pure analog dirt (selectable clean, overdrive, or fuzz with Bright/Dark/Warm color options) with a versatile DSP section offering room or hall reverb, tremolo, and pitch shifting. Mix and match the stages for dynamic, interactive textures—from massive ambient cleans and lush hall reverbs to gritty fuzzed-out tremolo or expressive pitch-shifted drive—then take it further with optional expression pedal control over reverb time, tremolo rate, or pitch amount. True bypass, compact die-cast chassis, and included power supply make this a road-ready tone laboratory that rewards exploration and delivers classic EHX character in endless combinations.