If you're a fan of Black Lion's Auteur 2-Channel mic pre but dig the 500 series format better, the Black Lion Audio Auteur 500 Series is the mic preamp for you. This single-channel, 500 Series-configured version of the Auteur is compatible with other 500 Series racks from a variety of other companies. The Auteur 500 Series has the same high-speed transformerless input as the half-rack version, polarity inversion, +48v phantom power, as well as a 10 dB output signal pad.