Millennia M-2B Transformerless Vacuum Tube Stereo Microphone Preamplifier - Manual (Page 9)

M-2b
M-2b TYPICAL MEASURED SPECIFICATIONS
THD + Noise, 22 Hz - 22 kHz < .01% @ +0 dBu
Frequency Response (-3 dB points) 4 Hz to 200 kHz
Maximum Input Level (+14 dB gain) +20 dBu
Maximum Output Level > +35 dBu
Input Impedance 3,800 ohms (conventional mic input)
9,000 ohms (high voltage mic input)
Output Impedance 120 ohms
Recommended Load (important) > 2,000 ohms
Noise (22 Hz - 22 kHz @ 50 dB gain) -116 dBu EIN, 150 ohm source
Common Mode Rejection Ratio > 80 dB, 100mV @ 1 kHz
XLR Polarity Pin 2 positive polarity, Pin 1 = ground
Gain Ranging (approximate) Low Range: 14 dB - 26 dB
Medium Range: 26 dB - 38 dB
High Range: 38 dB - 50 dB
Phase Reverse Switching? Yes
Phantom Switching? Yes
DPA (B&K) Switching? Yes, optional
Gain Range Switching? Yes, 3 ranges
Gain Adjustment Conductive Plastic Rotary Potentiometer
ELECTRO-MECHANICAL SPECIFICATIONS
Power Consumption 50 Watts, nominal
Power Requirements 100VAC to 240VAC, 50/60Hz, selectable
Fuses (2 required) 2 ea 1A with 100-120VAC mains (5x20mm,
slow-blow, 250V)
2 ea 500mA with 200-240V mains (5x20mm,
slow-blow, 250V)
Internal DC Power
+350V, +130V, +48V, -24V, +12V
Dimensions 19" W x 13.75" D x 3.5" H
Net Weight 24 pounds
Millennia Media reserves the right to change specifications, delivery, and pricing without notice.