In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The UA-3FX provides a powerful set of tools in a compact, USB bus powered, audio interface. This 24-bit audio interface offers a variety of useful DSP grouped into three categories. In Mastering mode, the UA-3FX offers the following effects; Noise Suppressor, Enhander, Low-boost, & a limiter. In Listening Mode, it offers; Center cancel, Hi-boost, Low-boost, & Reverb. In Performance Mode it offers, Voice FX, Guitar FX, Chorus, & Delay.