ART PRO MPA III Overview. The Pro MPA III is a flexible two-channel preamp in a 2U rackmount box that features simple controls and true tube tone. It may be a strong addition to your mixer’s or audio interface’s built-in preamps, thanks to its useful features. Each channel accepts an XLR microphone or 1/4″ instrument signal and has configurable settings for input strength, low-cut filter, impedance, and output level. There are also controls for 20 dB boost, phase inversion, and 48-volt phantom power. The Voice switch, introduced in version III, allows you to pick between a warm tube and a clean solid-state signal route. The character switch boosts low and high frequencies to compensate for the nonlinearity of microphone transformers and increase vocal intelligibility. The variable impedance range has been greatly expanded, giving a strong creative tool when employing dynamic and ribbon microphones. The Pro MPA III also has balanced XLR and 1/4″ outputs, 4 dBu and -10 dBV operating modes, and a universal internal power supply. The Pro MPA III, like the Pro Channel III channel strip and Pro VLA III compressor, is a low-cost, high-performance solution that adds classic analog processing and tube warmth to the modern studio. What is new in Version III? Voice Switch: Choose between a warm tube or a clear solid-state signal route. The Character Switch adjusts low and high frequencies to compensate for the microphone transformer nonlinearity and increase vocal intelligibility. Increased variable impedance range allows you additional versatility when employing dynamic or ribbon microphones for creative purposes. ART Pro MPA III Multivoice Tube Preamplifier Features Discrete Class A FET microphone preamps. Selectable 12AX7A tube or solid-state voice output. Variable microphone impedance and low-cut filter. Use a character switch to improve vocal clarity. Instrument-level DI inputs. Analog VU Meters. Operate at 4 dBu or -10 dBV Universal internal power supply.
