Darkglass Microtubes B7K Ultra V2 Bass Preamp Pedal with Aux In "A perfect combination of brutality and clarity, the Microtubes B7K Ultra delivers defined and powerful saturation in an intuitive format. There are no rules and no limits, so dig in and unleash your tone (Darkglass)." Features Four band equalizer with six selectable mid frequencies XLR output with switchable cab sim Headphone output with IR cab sim Dedicated footswitch to engage the overdrive section independently Master volume to control the overall unit level Attack and Grunt toggle switches to control the high and low frequency saturation Aux In jack to practice with backing tracks Condition: New in Box