Looptrotter Sa2rate 2, 2-Channel Saturator, Drive knob to control input level and depth of saturation, 2 LEDs indicate 4% and 8% THD, Dry and Wet controls for parallel processing, LO safe: prevents distortion at low frequencies, HI smooth: smoothly boosts high frequencies before saturation and attenuates them afterwards, resulting in deeper saturation of higher frequencies, Dimensions: 19"" / 1 U, Weight: 2.5 kg