High performance dual channel valve microphone preamp.
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 ProMPA 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 ProMPA 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 output levels while multi-colored LED arrays show tube gain.
Housed in a standard 2u 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.
Boxed, mint condition.
Key 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.