Lexicon MPX 100 Dual Channel Processor

It is very easy to use. Plug in the power, turn the knobs and off you go. The manual is good. Editing is easy, turn Adjust to change the parameter. Some patches can have timing changed using the Tap button which is very convenient.
You can't get full control over the parameters - they are grouped and changed together with the Adjust button. For me -new to sound effects- this is a good way to get a feeling what it can do.

I use the MPX 100 within my midi setup - a computer equipped with Roland Sound Canvas, Terratec DMX soundsystem. The sound quality is good - but hey, I bought this unit reading all these posts (and other branches) before homing into some particular models. I liked the Lexicon best. My favourite effects are the plate and gate effects.
Not all effects are really suitable for all kinds of music and in those circumstances some effects are hardly noticable.
There is a delay with the pitch effect.

And what is this noise I keep reading about? This device has no noise.

It worked, it works, I will tell you how reliable it is when it breaks down. I guess it won't...

Who needs them ?

As this is my first reverb I really like the sound quality and the ease of use. I was considering the MPX 100 and the MPX 200 but I am glad I bought the MPX 100. It offers superp sound quality, the best in this price range I would say, and as an absolute beginner in effects it is a really convenient device. Go buy one. Now.

This unit is very simple to use. Manual is also very simple to understand.

This unit is the weakest reverb processor I have come across to date. If your sound requires a rich lush reverb, DO NOT purchase this unit. I am a professional recording artist, and my sound largely depends on rich hall reverbs. If you select largest hall reverb on this unit, and crank the mix and the reverb feedback, all you get is a weak sounding reverb with lots of splash. As a comparison, on the Alesis Quad, if you select a hall reverb with the mix and feedback cranked, you get a true hall reverb sound that does not fade. Granted is you are someone who is looking for a studio type processor that doesn't overwhelm your sound, this is perfect. It just won't give you any strength if you need it.

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Stay away from this unit, unless you want a very subtle reverb effects processor.

I got this unit used here in Argentina. It is not difficult to use, but there are a lot of "hidden" features you can't remember without the manual.

I use it mostly for reverbs. They are great.
I use it for my electronic drum rig (ddrum4) in conjunction with a Mackie 1604 mixer.

I has more "hiss" than the ddrum4 outs.

IT worked well everytime. Rugged construction. I don't like the external power suply

No experience

This is a good unit for me, it gives my drums very realistic room effects. Just like my ddrum4, what you see is what you get, there are not a lot of editing capabilities, but the sounds are pro-quality.

Not that easy to get a good sound out of the box, especially when programming ir for studio work - lexicon will give you the delay and predealy times when visiting the site, but only after a slight dig. A little bit slack. for live work it sounds fantastic, nothing warpy or wierd, justa professional sounding reverb and a really interesting pitch shift. The flanging and chorus leave a lot to be desired, but hell, lexicon are know for reverb not really anything else.

Truly excellent, they could have left it rubbish al la zoom but they put good quality ad/da's into what is essentaily a budget FX box, well done lexicon!

Yeah I'd use it without B/U

The reverbs almost rival the quality of native essentials trueverb. But without controlability - I bought it for the reverbs and I was NOT disappointted....otherwise I would have rated it lower - 24bit internals for that price? tell me where else S/H you might get that?

I don't know what the couple of people who rated the MPX100 a one are thinking. While this unit does require some tweaking to get really good sounds, it's not rocket science. Have a little patience. Navigating the controls does require one to read the excellent manual, but one could also figure it out without the manual. The adjust knob doesn't always do the same things on every patch.

I run the MPX 100 through the effects loop of my Peavey Ecoustic 112 with a Lexicon Vortex and JamMan. My Takamine LTD 98 is plugged into a Tech 21 SansAmp Acoustic DI into a bunch of Boss pedals into the front of the Peavey. The MPX 100 is absolutely quiet. Most of the effects are excellent with the exception of the pitch shifter, which has a delay that renders it unusable for me. Other than that the delays/echoes are killer, chorus and flange are very good and versatile, the rotary is among the best I've used and the tremolo is nice too. The only thing missing is a phaser. What can you say about Lexicon reverbs that hasn't already been stated? If you are a tweak head then the MPX 100 is probably not going to be deep enough for you, but I get lost in the myriad of choices in processors like the TCElectronic M-One or the Rocktron Multivalve (which are excellent) so I prefer a simpler unit. I have used this unit for over 2 1/2 years and have never been unhappy with it.

I don't drag this around with me very often but if I did and I had it in a good rack case I'd be confident that it would hold up.

I've e-mailed and called Lexicon and found them to be very helpful and easy to deal with.

It doesn't matter what I play or who I like for you to know that the MPX 100 is easy to use and sounds great. I've been buying and trading gear for half of the 20 + years I've been playing and Lexicon gear never gets sold or traded. I wouldn't buy this unit again as I am soon to be adding an MPX 200 to my rack, but I will keep my MPX 100. The only thing I don't like is the pitch shifters, but then, since I don't read music (I play by ear and feel) I probably don't completely understand the theory behind using a pitch shifter to the fullest. Other than that I've ben totally satisfied with the MPX 100. Just remember, even though it's made to be simple to use, it still requires time, patience, and thought to get the most out of it. Peace.

Very easy to use. The controls do next to nothing so you won't be using them. Any editing attempts make the already miserable sounding patches sound worse. The manual is well written and describes a wonderful piece of equipment, not the MPX 100. The only similiarities between the manual and the unit are the drawings of the front and back panels.

The MPX 100 colors the sound of everything, and not for the better. I bought it to use for delay effect in my sound system rack. Could not find any suitable setting and could not edit any to get even close. So maybe I could use the reverbs for which Lexicon is famous, wrong again. I own a LXP-15 and there is no resemblance. I used to own a $29 Lafayette spring reverb in the late sixties that sounded a lot like the MPX 100. So I thought I could use it in the effects loop of my Mesa Boogie guitar amp, wrong again. The input sensitivity could not be set easily to a usable level, and it changed the tone of my guitar.

If it was not reliable, I would throw it away. Because it is reliable, I'll have to find someone to sell it to. This should be easy. There seems to be a lot of tone-deaf people giving this unit an excellent rating. PT Barnum was right.

Never dealt with them, but this unit is in dire need of an upgrade or an apology to everyone who bought one.

Lexicon usually makes great sounding stuff, but this is pure trash. They've sold a ton of them and made a lot of money, they should be ashamed. They'll not keep their reputation by trading their name for cash. But in the end it is my fault, I should know better than to buy something without trying it out. I bought on price and reputation alone. Not smart.

as easy as it gets

sound quality is excellent. nothing compares in this price range. the rotary speaker is just about perfect,I thought I had a decent rotary speaker sound on my rp2000 until I heard this puppy. literally night and day. you just won't believe how good it sounds the tremolo is also just about perfect giving you complete control of all parameters including square and sine wave variations as well as a few more. the reverb is outstanding as well but you have to sort thru about a million and one reverbs to find one or two settings that are really outstanding. but, once found, you can store it and you won't have to dig anymore. the pitch shifter blows all my other pitch shifters out of the water.( digitech, rocktron.)so it is also outstanding. chorus is pretty good but I'v seen better. not that it is bad, just not oustanding. detune works extremely well. I think it does a better chorus than the chorus setting itself. the bottom line is this: you will not find anything better than this for $500.00 and under In my opinion. As a matter of fact, you can spend $1000.00 and the difference in sound will be marginal at best. this unit stands head and shoulders above all other effect units of this type. there is no " sound floor" with this unit, you stop playing and all you will hear is dead silence. you will hear everything you play in detail with this unit. super sweet!!!the one big drawback for me is the fact you can only run a maximum of two effects at once so you will need to buy two of these units to really get the sounds out of it. but, what do you expect for $200.00? I know my search is over for the right effects rack unit and will be buying another soon.

I have had it about 6 months and no problems

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I like to play super clean sounds such as mood music and spacey stuff like that with a lot of effects and originality as well as heavy metal grunge sounds such as static x, def tones, staind, white zombie,etc. and this unit fits in with all styles unlike some of my other finicky pieces of equipment that I own.

The lack of a display panel makes it really hard to edit your user patches or know what you have once you've edited them. I got mine used without a manual, and it was basically impossible to know what sound to expect when you switch patches.

Now that I've bought a manual from Lexicon, I've managed to program half a dozen of my favorite effects for stage use - and that's all I use! The Mix knob allows me to increase or decrease the amount of effect, and the Tap button lets me set the tempo for delays.

Switching to the rotary effect, I have to turn the Mix knob all the way up so it takes two moves. That's hard to do in one beat of a song.

The sound quality is just fantastic. I play pedal steel with a stereo rig (Mesa/Boogie 50/50 power amp) and these effects are exactly what I need. The only other effect I use is distortion from the preamp (a Real Tube II).

It uses a wall wart, and since it's digital I use a surge protector. I wouldn't say that it's super rugged or anything, but it hasn't failed me in the past 6 months of use. If it failed on a gig I could play without it, so I'm not really too worried about it.

I've ordered a new manual and new knobs from Lexicon, and they were very easy to deal with. I'm not the kind of consumer who calls customer support very often, though. My rating is based on my two calls to their parts dept.

This is a real good, quiet unit. It has beautiful effects and a very reasonable price. I've discarded other equipment that didn't measure up: the Alesis NanoVerb and the Peavey TubeFex come to mind. This blows those other units away at this price point.

I'm a pedal steel player, and CLEAN effects are very important to me. I've used this unit in the recording studio and had compliments from the engineer. I'm going to move up to an MPX-500 when I get the cash, mostly so that I can see what I'm doing when I edit patches.

The convenience of the Mix control, the Tap button and the patch selector rotary switch make this unit very easy to operate on stage. I can tap in the delay tempo during the drummer's count and still catch the intro. My big ease of use complaint is the lack of a display panel.

The inputs peak very easily with lw volume. And the ouput is to low to suit my needs for live engineering.

When you can find a sound you like it can be blended rather nicely.

It is NOT the first choice of effects in my rack, but its these if I need something for the guitars.

Its ok but I think Lexicon can do better.

I would call it a "point and shoot" set-up. This is Lexicon's "budget" baby and all you do is turn the knob to the effect and do some blending adjustments. I knew it was a bare bones unit when I ordered it and really didn't want more. My goal was to get a nice reverb for my Soldano HR-50 - nothing more. For a few dollars more than a Boss Reverb stomp box, I picked up a blem unit and I'm glad I did. Everything is simple and straight forward. Take the 5 minutes required for a simple orientation via the manual and you have a great box that will be fine to have even when you upgrade.

I plan to use the unit with all my gear. The tap delay feature will be real fun with my acoustic. I use a PRS maple top Standard, a Yamaha Pacifica 904 (nice Warmoth parts), a Fender Roadhouse Strat' and a Takamine F470SS acoustic with a custom piezo and a Fishman Rare Earth humbucker. All I know is that the sounds are so good for the price, I can't wait to buy another Lexiocn unit. My original thought was to buy a used Korg RV-1000 like I had for years, but I kept getting outbid on Ebay. Trusting the Lexicon name I ordered the MPX-100 because it fit my present budget. I found the reverb I needed and so much more. I use effects sparingly, so I didn't need extreme in anything. This unit works well for me. The Soldano HR-50 head is more of a let down in the loop setup - that's not the fault of the Lexicon. I love the tap tempo feature - something I never thought about when I ordered it. My favorite pre-sets to work with are the chamber/hall reverb, the chorus/reverb and the delay/reverb. My favorite players are Phil Keaggy and Larry Carlton...even with THIER equipment I couldn't nail their sound. However, I get the sound I want for me.

So far - so good. I've only had it a week and as far as gigging, it's my only option at this point. My Boss AD-5 acoustic guitar processor has chorus and reverb so I have something to lean on for acoustic work. I have all the other effects for my electric's in pedal form except a reverb, so here's hoping the Lexicon stands strong.

No opinion since I haven't needed them.

I play all styles and this works well with them all. I'm a player of 35 years and I'm getting more demanding with each year. The Lexicon works for me and I'll stand by it. Don't waste money on a metallic sounding Boss pedal - get a fuller, more natural verb with the Lexicon and have the bonus of all the other patches too.