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Product: ART ProMPAII Two Channel Discrete Class A Microphone Preamp The ART Pro MPA II two channel microphone preamp is the next generation in affordable high performance microphone preamp technology. Each microphone input circuit, with selectable 48v phantom power, features variable input impedance which can radically vary the overall performance of any high quality dynamic or ribbon microphone. The Pro MPA II can be configured for dual mono or stereo operation with selectable mid/side mic support, summing the adjacent channel, to decode left/right signals. The Pro MPA II can operate at either a low or high plate voltage on the two integrated hand-selected 12AX7 tubes for wider variation of preamp tone and performance. Large back-lit analog VU output meters display input or output levels while multi-colored LED arrays, with average or peak hold, show tube gain. Housed in a standard 2 space rack-mountable steel chassis, with CNC routed black anodized aluminum face panel, the ProMPA II is designed to deliver years of reliable operation in the studio, production facility, or on the road for live sound reinforcement. Features: Variable Input Impedance For Flexible Microphone Voicing (150 Ohms To 2400 Ohms) Selectable Plate Voltage Large VU Meters Backlit Function Switches Discrete Class-A Input Microphone Preamplifier Low Noise at Lower Gain Settings Extremely Low Total Harmonic Distortion (THD) Wide Frequency Response Additional Front Mounted Instrument Input Jack Supports Mid/Side Miking Technique Operates at +4dbm/-10dbv Output Selectable Stereo/Dual Operation of Output Controls Automatic Instrument Input Selection Variable Input Impedance For Flexible Microphone Voicing
Selectable Plate Voltage
Discrete Class-A Input Microphone Preamplifier
Low Noise at Lower Gain Settings
Extremely Low Total Harmonic Distortion ART MultiColored

Product: ART TubeMP Project Series with USB Professional Microphone and Instrument Tube Preamplifier C Clean and neutral sound with a wide variety of signal sources
High impedance 1/4″ instrument inputs optimized for guitar pickups allowing every nuance to be heard
High quality 12AX7A tube inside to add warmth to musical dynamics
External power supply to keep AC line noise and hum back at the wall
Input Gain control and switch to maximize input dynamic range and s control tube drive Input ART