The ULN-2+DSP is the only unit in its class with an on-board processing chip, allowing you to use world renowned Metric Halo signal processing effects without sacrificing your computer's processing power.This one rack space audio interface has the ability to run entirely from the FireWire bus of a laptop computer or from any DC power source (9V-30V), making it truly and completely mobile. Flexible signal routing and sophisticated patch and preset management systems are also featured in the new +DSP version, including a front panel, nine-preset register for standalone operation. ULN-2+DSP's front-panel recall system allows the unit to function equally as well as a stand-alone Mic Pre/Converter system. In standalone mode, the ULN-2 operates with the converters directly routed to and from the AES/SPDIF I/O. As a standalone converter, the ULN-2 provides a 24bit/96kHz stereo front-end with ultra-low noise mic pres for any recording system. It also functions seamlessly as a digital monitor controller, making it ideal as digital headphone amp and studio monitor controller.