Lexicon MPX-550
Lexicon MPX-550

MPX-550, Processore Multi-effetto from Lexicon in the MPX series.

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content in English
Audiofanzine FR 12/12/2008

Lexicon MPX-550 : Recensione di Audiofanzine FR (content in English)


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(Originally written by Aurochs4/translated from Audiofanzine FR)
Very comprehensive connections for everything you need.


The user's manual is miserable. It's printed on a postcard format so it's almost unreadable, however I did manage to find the information I needed (mission accomplished!). 4 controls for direct parameter access. I like how they feel. The editing possibilities are good but you'll need some time to make the best out of it. I find the display is a bit too short. I also miss an editor software. It would have been so convenient!!!!

Live on stage, the four controls allow you to edit the main parameters and they are ergonomically placed. Each knob allows you to edit several parameters at one time.


The strong advantage of this effects processor is the processing quality: echo and reverb effects are perfect, flanger and chorus effects sound wonderful. Even long reverb effects sound accurate although a bit cold. The dynamic response is excellent: the input compressor certainly plays an important role. No noise... I use it for reverb, echo, chorus (excellent) and flanging effects. I didn't really try out the other effects but I noticed the rotary effects sound good.


Very good value for money. Very good effects processor!

I take one point off for an awful defect present on my two MPX 550: the power switch produces a switch-on thump when I power off the unit (which isn't really difficult to solve: even Behringer can do it!). It's the one and only complaint I have.

I compared this unit with a MidiVerb and a TC One. The MPX is better than the MidiVerb in every respect. Compared with the TC, its reverb effects sound a bit colder (especially long reverbs). But the sound definition is very good and there's almost no need for corrections. The presets sound good and are easy to edit. I miss MIDI implementation (is it so difficult to develop a small software??).

Connections are very comprehensive. I recommend this unit, it's a true delight to use it and it provides a very good sound quality.