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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 input or output levels while multi-colored LED arrays, with average or peak hold, show tube gain.
Housed in a standard 2u space rack-mountable steel chassis, the ProMPA II is designed to deliver years of reliable operation in the studio, production facility, or on the road for live sound reinforcement.
Main 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
Specifications: • Frequency Response 15Hz to 48 kHz (+0, -1dB) @ normal plate voltage 15Hz to 120 kHz (+0, -1dB) @ high plate voltage • Dynamic range: >110dB ("A" weighted) • CMRR: >90dB • THD: <0.005% (typical) • Equivalent Input Noise: -129dBu (XLR, "A" weighted) • Maximum Input Level: +19dBu (cannon) • Maximum Instrument Input: +17dBu • Input Impedance: 150-3000 Ohms adjustable (XLR) >800K Ohms (Instrument) • Maximum Output Level: +27dBu (XLR) • Output Impedance:: < 47 Ohms (XLR) • Maximum Gain: 75dB • Meter Calibration: 0 VU = +4dBu output (+4dB mode) 0 VU = -10dBV output (-10dB mode) • High Pass Filter: single pole, 10-200 Hz adjustable • Power Requirements: USA – 105 to 125 VAC / 60 Hz Export units configured for country of destination • Dimensions: (HxWxD in) 3.50 x 19.0 x 8.75 • Weight: (lb/kg) 10.5 / 4.7
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