The Diamond Pedals Optical effect pedal at a glance:

The Optical Bass Compressor and Tilt EQ effect pedal from Diamon Pedals finds the "sweet spot" in the frequency range and ensures rich and well-formed bass sounds. The controls for level, comp, mids and tilt allow versatile adjustment of woofer sounds. The mid boost and cut in particular, as well as the tilt switch, make the effect pedal from Diamond Pedals a particularly useful and effective compression effect for any pedalboard. Packaged in a robust metal housing in bright yellow, the pedal offers a smooth hi-fi sound of the new generation.