Rack-mountable 4-in/4-out reverb/effects processor with USB "Hardware Plug-In" capability that allows for linking the device directly to the computer with a USB cable, controlling all automation and recalling parameters exactly as you would with any software plug-in — while enjoying the sonic benefits only Lexicon hardware can provide. All parameters of every reverb, delay and dynamic effect in this powerhouse quad processor are available inside any AU compatible DAW program. Along with the unique “hardware plug-ins” for PC and Mac (32-bit only), there is also included the MX-Edit Librarian software so user can store and recall custom programs or pull up the choice of 223 genuine Lexicon settings including 25 dedicated Surround Programs. At its heart, the processor is everything you would expect from the company that invented digital reverberation: seventeen Lexicon reverbs, delays and modulation effects plus dbx compression and de-essing. A generous LCD display and big comfy knobs allow for simple and intuitive control. The unit provides four 6.3mm TRS balanced or unbalanced connectors. Dimensions: 483 x 44 x 185 mm. Weight: 2.6 kg.