User Manual

AMISPRE1 
Microphone Preamplifier 
Introduction
The Australian Monitor Installation Series PRE1 is a high quality, low cost mic 
preamp, that is highly featured & simple to use. The AMIS PRE1 features 
balanced XLR & unbalanced 6.35mm jack inputs & outputs, switchable 36 
volt phantom power, gain control & signal clip LED. Powered by a 
supplied 12VDC power supply, the AMIS PRE1 is an inexpensive mic 
preamp & phantom power supply & as part of the AMIS Contractor Tools 
range, has a multitude of uses in a wide variety of installations. 
Description 
•  Jack/XLR Mic Inputs: These inputs can be either unbalanced 
6.35mm jack or balanced XLR. Note Phantom power is available on 
the XLR input only. 
•  Jack/XLR Mic Outputs: These can be balanced XLR or unbalanced 
6.35mm jack outputs. Note  the 6.35mm output jack can also be 
connected to headphones for personal monitoring. 
•  12VDC Power input: This input accepts power from the supplied 
12VDC power supply. Note that the tip is Negative. 
•  Power LED: This LED indicates the unit is “on” 
•  Phantom Power On/Off: This switch enables 36 volt phantom power 
to the XLR input. 
•  Clip LED: This indicates that signal level is too high & distortion may 
occur 
•  Mic Gain: This increases the level of the microphone from the PRE1 
Specifications 
 Input impedance:  10K Ohm Balanced, unbalanced 


