MPX1 (discontinued)

2-in/2-out Multi Effects Processor

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The MPX 1 is the processor that fulfills the promise implied by the term, "multi-effects." Multiple Processor FX technology combined with an interactive front panel, creates a new set of standards for others to follow... no less than you'd expect from Lexicon.

What To Expect

  • No compromise stereo reverb in combination with as many as 4 additional stereo effects
  • A "goof-proof" system for quickly fine-tuning any program, without having to enter an in-depth editing mode
  • Visual feedback to tell you exactly where you are and what features are available; on-board Help guides you all the way
  • 56 Pitch, Chorus, EQ, Modulation, Delay and world-class Reverb effects
  • Complete flexibility of routing and effect order in every program
  • 200 preset programs designed for a wide variety of audio sources and applications — with database sorting to let you find exactly what you want
  • Layered features; options are there when you need them, and out of the way when you don't
  • Dynamic control of all effects parameters with pushbutton access to the patch system
  • Extensive MIDI implementation
  • Comprehensive audio connectivity


Analog Audio Input    XLR and 1/4" balanced (T/R/S)
Input Level    -2dBu to +20dBu, balanced;<br>-14dBu to +8dBu, unbalanced
Input Impedance    100k½, balanced;50k½, unbalanced
Analog Audio Output    XLR and 1/4"balanced (T/R/S)
Output Level    +18dBu
Output Impedance    600½unbalanced
Digital Audio Input    Coaxial RCA
Format    24-bit S/PDIF
Sample Rate    44.1kHz
Digital Audio Output    Coaxial RCA
Format    24-bit S/PDIF
Sample Rate    44.1kHz
Conversion    24-bit A/D;24-bit D/A
Internal Audio DSP    20-bit;32-bit
Frequency Response    20Hz - 20kHz ±1dB
Crosstalk    -60dB
THD    0.01%, 20Hz - 20kHz
Dynamic Range    D/A:>95dB typical, 20Hz - 20kHz, unweighted<br>A/D:>90dB typical, 20Hz - 20kHz, unweighted<br>A/A:>95dB typical, 20Hz - 20kHz, unweighted
MIDI Interface    7-pin DIN connector for MIDI IN and powered bidirectional remote;<br>5-pin DIN connectors for MIDI THRU and OUT
Footswitch    1/4"T/R/S connector for bypass and tap
Footpedal    1/4"T/R/S connector (10k½- 100k½impedance)
Power Requirements    100 - 240 volts AC, 50 - 60Hz, 25 watts<br>(3-pin IEC connector)
Remote Power In    2.5 mm 9 volts AC (not included)
Dimensions    19" W x 1.75" H (1U) x 9" D<br>(483 x 45 x 289 mm), rack mount standard
Weight    6.125 lbs.(2.8 kg)
Operating Temperature    32¡to 104¡F (0¡to 40¡C)
Maximum Humidity    95% without condensation


  Version Language Size Uploaded
MPX1 Cut Sheet-English   en  168 KB Jun 20, 2012
MPX1owners.pdf   en  8.25 MB Jun 20, 2012
MPX1_MIDI_Implmt_Rev0.pdf   en  195 KB Jun 20, 2012
MPX1_Presets_Rev0.pdf   en  58.4 KB Jun 20, 2012
MPX1_Presets_Rev1.pdf   en  58.5 KB Jun 20, 2012
MPX1_QRG_Rev0.pdf   en  126 KB Jun 20, 2012
MPX1_QRG_Rev1.pdf   en  125 KB Jun 20, 2012
MPX1_Users_Errata.pdf   en  2.93 KB Jun 20, 2012
MPX1_User_Guide_Rev0.pdf   en  2.29 MB Jun 20, 2012
MPX1_User_Guide_Rev1.pdf   en  2.29 MB Jun 20, 2012
MPX1_User_Guide_Rev2.pdf   en  2.32 MB Jun 20, 2012
MPX1_V11_Soft_Upgrade_Rev0.pdf   en  43 KB Jun 20, 2012
MPX1_V1_1_Adden_Rev1.pdf   en  10.2 KB Jun 20, 2012
MPX1_V1_1_MIDI_Impl_Rev1.pdf   en  197 KB Jun 20, 2012
MPX1_V1_1_Presets_Rev1.pdf   en  63.4 KB Jun 20, 2012
MPX1 Owner's Manual-English   en  27.6 MB Jun 20, 2012
MPX1 Preset List-English   en  1.11 MB Jun 20, 2012
MPX-1 Software     117 KB Aug 23, 2016

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MPX1 (discontinued)

2-in/2-out Multi Effects Processor