ATI Audio MX100 User Manual
Page 9
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push left) Repeat for S21 and S31 for inputs two and three. See mixer component
location drawing.
Microphone Input Gain
Set the desired input stage gain for your microphones by setting rocker 2 ON to select
60dB input gain for low output mics, turn rocker 3 ON for 40dB gain for typical
microphones or turn rockers 2 and 3 both OFF for 20dB gain and maximum input
headroom for high output microphones.
LINE INPUT GAIN
Gains of 0 or 10dB may be set for line inputs by turning rocker 4 OFF or ON. This
setting is effective when only when the front pushbutton is set for LINE inputs.
OUTPUT LEVEL
If you require a microphone level output from the mixer move the jumper plug P1 which
is located on the PC board just behind the output XLR connector. This inserts a balanced
54dB attenuator pad into the output line.
To set the 0VU meter indication to an output level other than the factory setting of
+4dBm adjust trimpot R70.
CUE/ MONITOR HEADPHONE LEVEL
The CUE/MONITOR level adjust trimmer on the MX101 (R74) is factory set for a
comfortable listening level at a director’s cue input level of -10dBu (.25Vrms) but can be
adjusted as required.
MOUNTING
You may rack mounted one, two, or three across in a standard EIA 19" rack and will
require only 1 3/4" of vertical space. Rack mount kit P/N20604-501 mounts a single unit,
P/N20604-502 mounts two units and P/N20604-503 mounts three units. Each kit provides
a different size pair of rack mounting brackets and one or two horizontal joiner plates,
P/N 20580-1, each with four 4-40 X 5/16" oval head screws. The joiner plates mount into
tapped holes on the bottom of two side-by-side units, using the supplied screws, while the
rack mount brackets mount under the existing 6-32 cover securing screws on the front
sides of the units.
Single desk mounting kits consist of a pair of angled base plates that mount under the