Lexicon MX400XL 4-in/4-out Reverb/Effects Processor

You want the rich, luscious sound that’s defined studio reverb for three decades: then you need a genuine Lexicon hardware processor like the MX400XL.

Lexicon MX400XL

But you also want the flexibility of programming high-quality effects right inside your DAW program…without bogging down your CPU or resorting to expensive processing cards.

Have it all with the Lexicon MX400XL. All parameters of every reverb, delay and dynamic effect in this powerhouse quad processor are available inside any AU compatible DAW program. Just link your computer to the Lexicon 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.

Lexicon MX400XL


Along with our unique “hardware plug-ins” for PC and Mac (32-bit only), we’ve also included Lexicon 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 Lexicon 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 get your hands around.

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

We know you need to be able to make changes quickly, so we designed the Lexicon 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 Lexicon 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, we designed the Lexicon MX400XL to withstand dust, moisture, shock, power surges and all the other rigors of live sound use.

The first time you ever heard reverb on an album track, chances are you were hearing Lexicon. We invented digital processing. And we’ve been perfecting it for thirty years.


Released: 2006

Quantization: 24 bit
Sampling Frequency: 44.1/48kHz 128 x Oversampling
Frequency Response: 10Hz – 20kHz
Dynamic Range: >109 dB
THD: 0.0019%

Dimensions: 483 x 44 x 185mm
Weight: 2.6 kg

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