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Lexicon MPX 100 User Manual

Lexicon MPX 100
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44
Assigning a MIDI Channel
for Program Load
In order to use Program Change mes-
sages for Program loads as well as to control
front panel buttons, the MPX 100 is de-
signed to have one MIDI channel dedicated
to loading programs. This is called the Pro-
gram Load MIDI Channel.
Although this channel can be used to
receive other Program Change messages,
numbers 0-15 will always load the 16 varia-
tions of the currently loaded program. Pro-
gram Change messages 0-15 will be ignored
on all other MIDI Channels.
When shipped from the factory, the MPX
100 has MIDI Channel 1 assigned as the
default Program Load channel. To re-define
the Program Load assignment:
1. Simultaneously press Store and Tap to
enter Learn Mode. (The Store LED
flashes slowly and the Tap LED lights
steadily to indicate Learn Mode is active.)
2. Send a Program Change message to the
MPX 100. (The Edit LED will flash to
show incoming MIDI activity.)
3. The MPX 100 learns the MIDI Channel of
the transmitting device and re-assigns
the Program Load function to that chan-
nel.
4. Simultaneously press Store and Tap to
exit.
This Program Load channel assignment
is remembered until it is deliberately re-set
with the same procedure.

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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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