The AceTone Little Red Booster is a compact boutique effect pedal from France, designed as a dedicated clean boost. It is based on a discrete transistor circuit that amplifies the input signal without coloration, intended to push tube amplifiers into natural saturation. The pedal features a minimalist one-knob layout that controls only the output volume. Despite the name AceTone, it is a modern creation by the French company ATE (AceTone Electronics) and has no direct technical lineage to the historic Japanese Ace Tone brand. It is noted for its high transparency and exceptionally low noise floor.