DacMagic Plus - Technical Specification April 04, 2024 15:28 DacMagic Plus Technical Specifications. Related articles DacMagic Plus - Firmware Information DacMagic Plus User Manual Does Digital Pre-amp Mode affect the digital output on the DacMagic Plus? Will digital pre-amp mode reduce the audio quality of the DacMagic Plus? How do I switch between USB Class 1 and USB Class 2 on a DacMagic Plus?