Combining a world-class analog front end, cutting-edge conversion quality, and the unparalleled power of UAD-2 QUAD plug-in processing built-in, the Universal Audio Apollo QUAD firewire audio interface represents a new approach to recording. Over 10 years of research and development have gone into making the Apollo QUAD, and it's poised to change the way you operate in your recording studio. Apollo QUAD gives you built-in UAD-2 QUAD DSP to let you track, mix, and master with acclaimed UAD-2 powered plug-ins - with near-zero latency! UAD-2 powered plug-ins serve up incredibly realistic emulations of classic studio processors, so you can get the sound of iconic analog equipment on your tracks with the convenience of plug-ins. And with Apollo QUAD, you have all the DSP power you need to run an array of these top-notch plug-ins with ultra-low latency while your host computer runs your DAW.