Styled in red, the SPL DMC is a comprehensive mastering console that gives you the ability to process audio from four sets of stereo inputs, manipulating their level and polarity on a per channel basis as you hit the insert stage (i.e., your external compressors, EQs, and such). After processing audio from your external gear, you can use the DMC to monitor through four sets of speakers, a sub, and a headphone amplifier.
Monitor controls are on hand for dim, level compensation, L/R solo, L/R polarity, and mute. All XLR terminations—and there are many of them, rest assured—are secured with Neutrik connectors to ensure durability. At the core of the mastering console is its formidable 120 VDC power rail, which has a palpable effect on the maximum level the circuits can handle. This translates into an extremely low signal-to-noise ratio, a large dynamic range, and much in the way of headroom. Indeed, you can push this system quite hard and loud before noticing distortion.
For a full understanding of the DMC’s various sections, please peruse the features section.
These four input-pairs can be assigned to your DAC, a tape machine, or whatever media device you're mastering from. Pressing any active input button a second time lets you instantiate direct input monitoring, effectively bypassing processing at the monitoring stage, allowing you to compare the original material with the processed path without affecting the recording stage.