O2 Sweet LEO was designed by Thomas Blug, a famous German musician, guitarist, composer and music electronics engineer. It has a fat and powerful character and the growl knob controls the mix of effects, even at full drive you could hear the original sound. It is also designed more as a rhythm guitar pedal. O2 has a tight low frequency range and a pulsating clarity even at high gain. The level that raises the volume of the sound can be turned back with the boost pedal to get a cleaner sound image. The tone range is wide and also preserves the low frequency range which ensures your rhythm playing does not break off and does not get lost in the mix.
Demo by BluGuitar - Tone Innovation For Guitarists (EN)
Demo by Scan Pro Audio (EN)