He MXL MPAC-01 serves as a microphone preamplifier and compressor for recording or mixing vocals and instruments. It is designed to amplify the low-level signal output from microphones, making it suitable for recording.The compressor in the device automatically adjusts or "compresses" the audio signal level to achieve a more consistent dynamic range. Mic Preamp: Amplifies the low-level signal from microphones. Compressor: Adjusts the audio signal level for a consistent dynamic range. Single-Channel: Operates with one microphone. Phantom Power: Supplies +48V DC phantom power for condenser and active dynamic/ribbon mics. Gain Control: Allows users to set volume with a range from infinity to 60dB. High Pass Filter: Minimizes unwanted low-frequency sounds with a variable cut-off frequency from 50Hz to 175Hz. Phase Switch: Inverts the polarity of the microphone input signal by 180°.
Pad Switch: Reduces the microphone's input signal by 20dB. DBu Meter: Shows the output level and the amount of gain reduction. Threshold, Attack, Ratio, Release, Make-up Controls: Various controls for the compressor to adjust how it reacts to the input signal.