Specifications
ATI Audio Inc.   ■   Tel: 856-626-3480    ■   Fax: 856-504-0220   ■   sales@atiaudio.com    ■    www. 
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tion. The MX101 provides a high-level line output that will drive either balanced 
or unbalanced external loads of 600 ohms or higher. The XLR output may also 
be jumper-plug programmed for microphone level output. 
A HEADPHONE switch selects either full program or split program and cue. A 
recessed,  thumbnail  operated  headphone  level  control  minimizes  panel  clutter 
and once set, tracks the MASTER output. A pre-fader cue from input one or an 
external  director’s CUE  INPUT  from  a  rear panel  jack  feed  the headphone  cue 
circuit thru an internal trimpot. 
An EXPANSION INPUT to the mixing buss allows interconnection of two mixers 
or the addition of one or more companion XP100 Mic/Line Input Expanders. All 
panel controls and connectors are clearly labeled. 
MX100 AND MX100C STUDIO MIXERS 
Both the MX100 and the MX100C also provide three inputs with front panel se-
lection of microphone or line input levels. Phantom power and input stage gain is 
DIP switch programmable  for  any input. Phantom power is disabled in the line 
input  mode.  The  MASTER  level  control  feeds  a  high  level  output  stage  which 
comfortably drives either balanced or  unbalanced output loads of 600 ohms or 
greater. A bright LED VU meter and headphone amplifier monitors the program 
output. The output may be set to line or microphone level by moving an internal 
jumper plug. The MX100C adds a switched low distortion compressor/limiter and 
a peak-indicating LED to the  basic MX100  Mixer. A rear panel Expander input 
allows interconnection of two mixers or the addition of one or more companion 
XP100 Input Expanders. 
XP100 INPUT EXPANDER 
The XP100 Input Expander provides four (4) additional MIC/LINE switchable in-
puts and plugs into the Expansion Buss input of the mixer. 24V phantom power is 
available for each input via internal jumper plug selection. The XP100 inputs pro-
vide  a  fixed  40dB  microphone  gain  and  unity  (0dB)  gain  for  line  inputs.  The 
XP100 is supplied with interconnecting expansion cables for the audio and DC 
connections to the MX101, MX100 or MX100C.  
POWER 
A mixer and up to two companion XP100 units can comfortably share a single 
external WA100-1 24VDC/400mA wall mount AC/DC power supply. A mixer and 
a single expander can be powered from a DCA100-1 DC converter or a PPA-1 or 
PPA-2 rechargeable battery pack. 










