The UAD-2 QUAD Custom DSP Accelerator contains Universal Audio's second most powerful PCIe processing card, coupled with a Custom software bundle that lets you choose any three UAD plug-in titles at registration. In creating UAD plug-ins, UA's DSP engineers work with the original hardware manufacturers using their exact schematics, golden units, and experienced ears to create fully authenticated plug-ins with all the warmth of classic analog equipment. The Universal Audio UAD-2 QUAD Custom features four SHARC processors and easily installs into a PCIe-equipped desktop computer or compatible expansion chassis (PCIe or Thunderbolt*), giving your Mac or PC an immediate boost in audio quality and mix processing power. The UAD-2 QUAD Custom includes UA's "Analog Classics" plug-in bundle and it lets users select any three additional UAD plug-in titles from a world-renowned library that includes Ampex, Manley, Lexicon, EMT, Empirical Labs, Neve, Roland, Fairchild, Harrison, Little Labs, Studer, SSL, and more (sold separately).Universal Audio