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Lexicon MPX 100 User Manual

Lexicon MPX 100
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Setting Audio Levels
1. Start with INPUT set to 9:00 o'clock and
OUTPUT all the way down (fully counter-
clockwise).
2. Set the instrument output or effects send
being input to the MPX 100 to a nominal
level and play, or send audio to the MPX
100. The Level LEDs* should light green.
If the Clip LEDs light red at this point, turn
down the output of the instrument or
effects send until the Clip LEDs remain
off during the loudest passages.
3
* The Level LEDs are off when the incoming signal
is low (more than 30dB below overload). The Clip
LEDs light red when the signal approaches over-
load (-2.5dB). Acceptable signals will cause the
Level LEDs to light green almost continuously,
with the Clip LEDs flashing red on peaks.
3. While still sending audio to the MPX 100,
gradually turn up the INPUT control until
the Clip LEDs show red on only the
loudest peaks.
4. Set the MIX control to Dry.
5. Turn OUTPUT to the desired level.
6. If the MPX 100 is using a console’s sends
and returns, set the MIX control fully
clockwise (100% wet). If you are using an
instrument amplifier, start with MIX set
halfway up.
As with any audio product, it is good
practice to first power on all outboard
gear, then the mixer, then any loud-
speakers.

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Lexicon MPX 100 Specifications

Audio Inputs and Outputs IconAudio Inputs and Outputs
audio input level-30dBu to +4dBu
audio input impedance500K unbalanced
audio output level+8dBu typical
audio output impedance75Ω for Headphone output
Digital Audio IconDigital Audio
digital audio output20-bit Digital S/PDIF
sample rate44.1kHz
conversion20 bits A/D, 20 bits D/A
Frequency and Distortion IconFrequency and Distortion
frequency response20Hz-20kHz, ±1dB
thd+n<0.05%, 20Hz-20kHz
dynamic range A/A>95dB typical, 20Hz-20kHz, unweighted
dynamic range A/D>100dB typical, 20Hz-20kHz, unweighted
crosstalk45dB
Power and Environment IconPower and Environment
power requirements9VAC wall transformer
operating temperature32° to 104°F (0° to 40°C)
relative humidity95% non-condensing
Weight and Dimensions IconWeight and Dimensions
dimensions19"W x 1.75"H x 4"D (483 x 45 x 102mm)
weight2 lbs, 2 oz (0.959kg)
internal audio data pathDSP: 24-bit

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