The Lexicon MPX 100 is a true stereo dual-channel effects processor boasting 24-bit internal processing, 20-bit A/D-D/A, S/PDIF digital output and encompassing 250 built-in presets.

Powered by a new version of Lexicon’s proprietary Lexichip™, the MPX 100 has 240 presets with classic reverb programs such as Ambience, Plate, Chamber and Inverse, as well as Tremolo, Rotary, Chorus, Flange, Pitch, Detune, 5.7 second Delay and Echo.

Dual-channel processing gives you two independent effects in a variety of configurations: Dual Stereo (Parallel), Cascade, Mono Split and Dual Mono. A front panel Adjust knob allows instant manipulation of each preset’s critical parameters and an Effects Lvl/Bal knob lets you control effect level or the balance of dual effect combinations.

An easy Learn mode allows MIDI patching of front panel controls. In addition, tempo-controlled delays and modulation rates lock to Tap or MIDI clock, and Tap tempos can be controlled by audio input, the front panel Tap button, dual footswitch, external MIDI controller or MIDI Program Change.

Other features include dual 2-stage headroom indicators, a headphone output, a software-selectable MIDI OUT/THRU port, pushbutton or footswitch selection of dry or muted audio output and a 20Hz-20kHz ±1dB Frequency Response.

Audio Inputs (2)
Level -20dBu
Impedance 500K unbalanced for

Direct Instrument input
(Unit detects mono input
on the right input)
1/4" connectors

Analog Audio Outputs (2)
Level +8dBu typical
Impedance 75Ω: headphone output
(Left only used for mono
output; Right only used
for stereo headphones)
1/4" connectors

Digital Audio Output
Digital S/PDIF output (always active)
Sample Rate 44.1kHz
ConnectorCoaxial, RCA type
Tip/Ring/Sleeve phone jack for
Bypass and Tap (optional)

Frequency Response
Wet/Dry 20Hz-20kHz, ±1dB

<0.05%, 20Hz-20kHz

Dynamic Range
A-A >95dB typical, 20Hz-20kHz,
A-D >100dB typical, 20Hz-20kHz,

20 bits A/D, 20 bits D/A
44.1kHz sample rate


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