Audio preamplifier with 8 balanced inputs, 2 for microphone signals and 6 for stereo line signals, all with gain controls. The two microphone inputs feature 3-band equalizers (highs, mids, and lows), phantom power, and priority over other inputs. The unit includes two additional inputs, one for PM-2Z microphone desks, with priority over all inputs, and another for 0 dB signals with absolute priority, for combining with pre-recorded messages players or external voice alarm systems, for example. The preamplifier has two balanced 0 dB stereo outputs for direct connection to amplifiers and power units. From the front panel, it is possible to assign each input to one of the two outputs, adjust the audio level of each input and output, and equalize (highs and lows) each output.