Item #: LEX MX400XL LIST

Lexicon MX400XL Dual Stereo Multieffects Processor

Order your Lexicon MX400XL Dual Stereo Multieffects Processor from AMS and enjoy 0% Interest Payment Plans, Free Shipping, Free Extended Warranty & 45 Day Money Back Guarantee.

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MSRP: $437.00
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Product Description

The Lexicon MX400XL dual-stereo (4x4) Processor is equally at ease in the studio or a concert hall, with a unique VST/AU software interface via USB, delivering the classic Lexicon sound.
You no longer have to compromise between the instant control of plug-in effects and the warm, complex depth of a dedicated hardware-based processor. The MX400XL acts as a hardware plug-in within any VST/AU-compatible workstation environment. In live performance, the intuitive front panel design indicates which effects are active and provides control for each 24-bit processor. 99 carefully crafted factory presets offer stunning reverbs and effects (including dbx dynamics!), with 99 programmable slots. World-class Lexicon effects with a unique VST interface and the convenience of USB.

Lexicon MX400XL Features

  • 17 legendary Lexicon® reverbs
  • Lexicon delays & modulation effects
  • dbx® compression and de-essing
  • Quad-processor design
  • 7 effect routing options
  • 99 Factory and 99 user programs for Stereo mode
  • 99 Factory and 99 user programs for Dual-Stereo mode
  • 25 Factory and 25 user surround programs
  • USB Hardware Plug-In feature with
  • VST® and Audio Units plug-in software
  • MX-Edit™ Editor-Librarian software
  • Dual SPDIF Digital Input and Output
  • 24 bit; 48kHz and 44.1kHz sample rates
  • Large front panel LCD display
  • MIDI IN and THRU
  • XLR balanced input and output

You want the rich, luscious sound that’s defined studio reverb for three decades: a genuine Lexicon hardware processor. But you also want the flexibility of programming high-quality effects right insideyour DAW program…without bogging down your CPU or resorting to expensive processing cards.

Have it all with the MX400XL. All parameters of every reverb, delay and dynamic effect in this powerhouse quad processor are available inside any VST® or AU compatible DAW program. Just link your computer to the MX400XL with a USB cable and control all automation and recall parameters exactly as you would with any software plug-in — while enjoying the sonic benefits only Lexicon hardware can provide.

Along with Lexicon's unique hardware plug-ins for PC and Mac®, they've also included MX-Edit™ Librarian software so you can store and recall custom programs or pull up your choice of 223 genuine Lexicon settings including 25 dedicated Surround Programs.

At its heart, the MX400XL is everything you would expect from the company that invented digital reverberation. Seventeen Lexicon reverbs, delays and modulation effects plus dbx® compression and de-essing. A generous LCD display and big comfy knobs you can getyour hands around.

Meet the most Lexicon power ever offered in a super-affordable 1RU effects processor. Perfect for band PAs, churches and clubs.

Lexicon knows you need to be able to make changes quickly, so they designed the MX400XL’s intuitive front panel to be a bare minimum of knob tweaks away from any adjustment or effects change. For example, three individual, assignable parameter controls mean you don’t have to page through menus to fine tune a reverb tail. Because you can use its built-in dbx® compression and de-essing in tandem with reverb, the MX400XL is the perfect tool for taming problem vocalists.

Finally, you can rely on the MX400XL for years to come, through countless load-ins and loadouts — although its sound is A-studio-quality, Lexicon designed the MX400XL to withstand dust, moisture, shock, power surges and all the other rigors of live sound use.

Lexicon MX400XL Effects

  • Small Hall
  • Large Hall
  • Surround Hall
  • Small Plate
  • Large Plate
  • Room
  • Chamber
  • Gated
  • Reverse
  • Vocal Hall
  • Vocal Plate
  • Drum Hall
  • Drum Plate
  • Ambience
  • Studio
  • Arena
  • Spring


  • Studio Delay
  • Digital Delay
  • Tape Delay
  • Pong Delay
  • Mod Delay
  • Reverse Delay
  • 2-Tap Delay

    dbx® DYNAMICS

  • Compressor
  • De-Esser


  • Chorus
  • Flanger
  • Phaser
  • Tremolo - Pan
  • Rotary
  • Vibrato
  • Pitch Shift
  • Detune

    All MX400 reverbs, delays, dynamics and effects parameters can be accessed and edited from the included VST® and Audio Units plug-ins.

warning WARNING: Cancer and Reproductive Harm -

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Helpful Info about the Manufacturer
Phone:  801-568-7567 Warranty:  1 Year

Product Specifications

Product Specifications

Lexicon MX400XL Specifications

    Analog Audio Inputs
  • Connectors: Four XLR balanced
  • Impedance: 50k Ohms bal., 25k Ohms unbal.
  • Input Level:+4 dBu nominal, +24 dBu maxium 48kHz or 44.1kHz
  • A/D Conversion: 24-bit, 48kHz 128 x oversampling

    Analog Audio Outputs

  • Frequency Response: 10Hz - 20kHz +0 dB/-0.5 dB
  • THD+N: <0.0019% 10Hz - 20kHz
  • Dynamic Range: >109dB (A-weighted) A/A
  • Crosstalk (typical): <-80 dB 20Hz - 20kHz

    Digital Input and Output

  • Connectors Dual RCA phono (SPDIF)
  • Format: SPDIF 24-bit
  • Sample Rate: 44.1 or 48kHz
  • Frequency Response: 10Hz to 22kHz ±0.5 dB @ 48kHz

    Control Interface

  • USB: USB 1.0 for MX-EDIT™ Editor-Librarian and VST™ & Audio Units plug-ins
  • MIDI: In, Out 5-pin DIN
  • Foot Pedal: 1/4-inch phone jack


  • Power: 117 VAC or 230 VAC, 18 Watts
  • Size (WxHxD): 19 x 1.75 x 7.25 inches
  • Weight 5.8 lbs. (2.6 kg)

Specifications subject to change without notice
Copyright notice: VST is a trademark of Steinberg Soft- und Hardware GmbH.

Customer Reviews

Jimmy Drum Submitted: 1/22/2019
Product Rating

Does not do the Lexicon name justice
Product Rating
What is your opinion of this product?
A very low-grade Lexicon product, not worthy of the name. I got mine, and was looking for that name-brand sounding hall, but kept getting a tinny harsh sounding reverb, short or long decay, it all sounded like the same preset. The reverse and gates are very nice though.
TonyMac Submitted: 9/22/2015
Product Rating
What is your opinion of this product?
Smooth! Easy to understand! Great sound card!


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