The stand out feature of Sie-Q, like the original, is its amazing high end. It adds space and air, and feels perfect on any track, no matter how much you boost. Turn up the High knob to breathe life into vocals, or pull it back on bright acoustic guitars and cymbals to create a silky sheen. Sie-Q is also a fantastic addition to your master bus–just a touch of the High band can add life and openness.