Audio Specification
Gain 20 dB fixed
Gain Accuracy ±0.5 dB
Frequency response 20 Hz - 20 kHz ± 0.25 dB, 150 ohm source
Equivalent input noise (EIN) -115 dBu at 20 dB gain, 150 ohm source, flat weighting, 20 Hz - 20 KHz
Output clipping level -10 dBu with 600 ohm load
Input clipping level -30 dBu at 20 dB gain 600 ohm load
Input - electronically balanced, 1K ohm input impedance
Polarity - input to output is non inverting, polarity is preserved
Output - electronically balanced 200 ohm output impedance Power
Powered solely from 48 volt phantom power (DIN 45 596).
Ultra low current amplifier; using only a fraction of the available power leaving the remainder to run the microphone as normal.
Current consumption 1.4 milliamps typical. Physical
Strong Neutrik extruded aluminium case with laser engraved legend.
Internal circuitry encapsulated for robustness and maximum moisture resistance.
Connectors all Neutrik gold plated 3 pin XLR.
Pin 1 -ground
Pin 2 - signal + (hot)
Pin 3 - signal - (cold) Dimensions and weight
Standard Mini MicBooster
78 mm (l) x 26 mm (w) x 31 mm (h), 88 grams
3.07” (l) x 1.02” (w) x 1.22” (h), 3.1 ounces Extended Female XLR Mini Mini MicBooster
106 mm (l) x 26 mm (w) x 31 mm (h), 98 grams
4.17” (l) x 1.02” (w) x 1.22” (h), 3.4 ounces Operational Guidelines
The preamplifier is designed to boost low level mic signals before they go into the microphone input of a recorder or sound mixer. It is not designed for and should not be used to amplify a signal to line level. At levels above -10 dBu distortion will begin to occur. A typical situation may be an effects mic which would normally have 60 db of gain at the mixer. Instead the mixer gain could be reduced to 40 dB with 20 dB provided close to the microphone by the Mini MicBooster. The preamplifier is best positioned as close to the microphone as possible, in this way the maximum signal to noise benefit will be achieved. It is powered from 48 volt phantom power which is normally switchable on the microphone input of most professional recorders and mixers. It cannot be used with other forms of microphone power. If the preamp receives reduced phantom power for any reason, possibly very long cable runs of poor quality cable or moisture ingress into connectors - its performance will be compromised, the first sign of this will be reduced headroom and of course the cable should be replaced to restore performance. | 
