The 102XL from Kramer is a compact 2-channel mono audio mixer designed for professional applications. The unit features 2 XLR inputs, which can accept mic or line level signals, and provide 48V phantom power for use with condenser microphones. Output is via a single XLR connector. The unit has individual level control knobs for each input, as well as a master level control. Up to 4 units can be mounted side-by-side in a 1U rack space by using the optional RK-1 rack adapter.