Can this be used as a general audio output for a PC without installing anything on said PC? I'm looking for a DSP/DAC/Preamp combo that I can use with both my personal and work (read: locked down for security purposes and using on VPN) laptop. I'm hoping that this will allow me to set the DSP once and have it just work, regardless of the source, and also serve as a preamp to allow for volume control, as Windows like to randomly switch to 100% volume at times...