Lexicon MPX 100 Dual Channel Processor

pretty simple to get a good sound. A lot of presets, and you can tweek a couple parameters. Manual's good.

using this with an older mackie 1604vlz, mostly for verb, though the chorus is pretty good too. Not at all noisy, SWEET verbs for the price.

Haven't had any problems with it. We don't gig that often, though, so I may not be the best authority on this subject.

Haven't dealt with them.

We play rock music, vocals & instrumentals, and this is good for chorus, and great for verbs. Been playing for about 25 years. We also use a presonus bluemax compressor as well. Inexpensive stuff, and it works well for what we do. I'd buy it again if it were lost or stolen.

very simple to use, easy editing and storing patches simple manual
original firmware

this little unit has pristine lush sounding reverbs which is why I got it I think outboard effects are sometimes better than software
i use it through a mackie mixer using one of the auxs and have no problem with clipping or hum at all just clean sounding effect

very dependable/reliable and simple

n/a

this is a good unit for all music I play rock blues and pop
easy use and no menues eg there is no lcd dispaly only knobs
if you like decent reverb for low cost this will do the job
and then some has chorus, flange, pitch,delay as well oh and the mpx 100 is dual channel stereo so you can split it into two auxs

very easy to get a good sound. plug it in and turn it on. very easy to store your favorite sounds. you would have to be very stupid not to be able to operate this unit in 5 minutes. you can download a users manual if you need it which you might need to store a program which is very simple.

i know this unit has been replaced with the mpx 110. since i am mostly a reverb nut i dont care what these other reviewers say about this product this thing has the best reverbs i have ever heard and i am not tone deaf. ive had rolands srv 2000, dep 5, peavy addverb alesis nanoverb , i still own the peavy and alesis and they are very good. the main reason this thing is so cheap is because it is made in china. i hear a lot about high dollar pcm reverbs but i seriously doubt there is much difference in reverb quality under identical circumstances. this is a great sounding product.

very dependable would use without a backup. i like my nanoverb and peavy but i wanted this unit because it says lexicon even tho it is made in china, so is the nanoverb. havent had it long and bought it used so i wont rate it yet but so far so good.

never dealt with them. i think they have a pretty good rating for customer support. you can read what the other reviews say about support.

i play gospel, country and bluegrass also have a home studio and this unit will help me and do what i need it to do.btw this unit is very low noise and does not clip nearly as easy as some reviewers have stated. i forgot i also had an lxp 1 and this unit sounds just as good and transparent. 1 would buy it again, they are going on ebay for around 100 dollars just be sure the seller has good feedback. you cant beat this product for the price. i do wish it had display window but for the price you cant have everything. been playing 45 years.

The unit is very easy to handle, yet one should know which effect belongs to which variation number by heart in order to avoid looking into the manual every time you use the unit. Editing is easy and one obtains satisfying results very quick.

THIS is for all of you out there who believe the MPX 100 clips too early and wonder about the low input adjustment. The MPX 100 is suitable for input voltages of -30dBu to +4dBu. Adjusting the input knob to 9 o'clock means, that an input level of 0dBu would just not cause the clip-LED to light up. In this situation, rotating the knob clockwise must cause clipping!!!! So, there's absolutely no problem concerning this matter.

To my knowledge, there's hardly any noise added to a signal.

For instruments which need a sophisticated treatment of parameters like pre-delay, high damp, ... for reverberation (maybe for snare, vocals) I prefer different units or plug-ins. For everything else it's great.

So far, no problems...

The MPX 100 fits perfectly in our studio setting complementing our equipment. The price-performance ratio is excellent in our case since we bought a used one.

this is a follow up to my original post after i got this
a few yrs ago....i realize this is the old "intro" to
lexicon effects.....

well, originally i said it sounded good, but 1 1/2 yr ago, i noticed
when i was recording stuff that i was getting a strange crackle, and
then i noticed that i was not getting my stereo sound. i thought it
was my long delay/looper acting crazy. i took my rack apart, tested
each piece, and lo and behold, it was my lexicon mpx100. the one piece
of gear that I BOUGHT BRAND NEW!!!!! so after that, disconnected it.
i just hooked it back up again, to test again, to make sure, and nothing comes out. the light flashes showing i've got signal coming in, but nothing out of either out channel. i originally thought it was a short.....

well. i bought this b/c i had read the b. frisell interview in GP mag
back in '01 (i think) and he said he loved the mpx100 for reverbs, delays, and pitchshifting. so i thought, well if it's good enough for
him, its good enough for me. i bought it right after xmas in 01, and it did work fine until mid-05. i suppose you could say, well, i almost got 4 yrs out of it....but i had a # of digitech rack units from the late 80's and early 90's and they worked great, sounded great etc....so to say i'm disappointed...i realize that the world of effects is going to software/computer applications, but i am one who doesn't use that stuff (yet). i thought my budget lexicon unit would last much longer. i emailed co. last yr and they said that they have a standard 90$ fee to fix things. i suppose most would say that's not bad, but if i had paid an additional 90$ i could have gotten the mpx200 which was at the time 299$ (versus the 199$ mpx100). i guess i should have known something would happen, when about a month after i got mine, they discontinued it, and came out w/ the 110 model, and now i think they have the mx200 or something. just very disappointed.

emailed the co. last yr and they said that it's 90$ to fix. i'm hoping the cost hasn't doubled in the yr i let it sit.

i remember seeing one for sale here in H-C ads and someone was
asking 35$ for one of these. i remember thinking, wow, only 35$?
this was my main reverb, post looping processor. i liked it when it
worked, not so sure how much i trust stuff anymore. the thing is i'm on a budget and can't afford the top of the line lexicon stuff. i really missed it when i took it out of my chain, but got used to using my other digitech rack reverbs for awhile, and then scaled back my rack and have been using mostly reverbs from my multi-effects pedals. i don't think they are as good, but they served me since this unit failed me.

Not real deep editing but that's ok, I get what I need out of it.

I bought this for one reason. Bill Frisell uses it. This is how he gets that beautiful long reverb. It's a snap to get that verb dialed up.

My big complaint. if I sit it by my amp or a power strip it makes bad hummmm. It works best isolated from other gear. A hassle.
Because of that, it sits in my home studio and doesn't see the light of day as far as playing out.

Now I'm playing with guys who like Steve Kimock (LXP-1 reverb) These reverbs are mostly the same (is there a mod?) so I'll have to start using it.

I'm knocking 2 points off for the hum prob.

The long reverb sounds great, just wonderful.

When I learned Bill Frisell uses this unit I was on the hunt.

Steve Kimock and Bill Frisell use reverb in a similar way. They both play with economy and they both utilize in-just tuning, creating chorus like textures by bending the neck or microtonal string bending. The long delay is the best I've ever heard for this kind of playing. These guys must feel the same way also.

I have the 'Line6 Podxt Live' pedal and I totally love it. I'ts my main rig. BUT, as powerful a tone shaping tool the Live is it just cannot dupe the long reverb in the Lexicon.
I feel comfortable Line6 could model this verb and I'd be happy. But for now this sound lives only in these early Lexicon units.
I just wish I was eager to haul a lot of gear around still. I'm too lazy. The Pod is too convienient.

Bottom line - This is my favorite reverb

I must always own this reverb.

Happy Trails too the max.

very easy to use, select patch, rotate knob for 16 variations, easy to read manual, all the patches sound good, quiet and sparkling.

I tested this unit by plugging in a Strat direct and using AKG headphones. Absolutely no noise, digital glitching, buzz or anything that spoiled the audio program. Just clean clear deep when desired patch sounds. All the efx sounded good, the room-ambiance, and reverbs were sparkling. I even liked the chorus/flange/phase modulation patches. This low-cost Lexicon unit delivers, especially if you are looking for a fast patch with numerous variations on the theme. Highly recommended!

I bought this unit to add some basic stereo spread to my stereo guitar rig, it works on all accounts and I'm very pleased with it. Would also be highly suited for recording as it is a no noise at all unit.

no issues, although I am a new owner of this unit, it appears to be fully functional and works fine.

I've heard that Lexicon is pretty good w/support.

Play everything from 60s-90s rock, been playing a long time so you could call me a "classic" act..... After a hundred or so amps over the past few years seeking that perfect combination for my style of playing, I settled on (2) Vox AD50VT amps, a Vox Tonelab as an input/front end, running through an Orban 111B spring reverb (best on the planet), a DBX 119 compressor/expander (to eliminate any signal noise), and finally this Lexicon MPX-100 to add a slight delay/ambiance between left/right sides of the stereo amp setup. My tone-to-the-bone setup is now complete.

Manual seems to explain it pretty well.

Sound seems half way there except for the tankiness others talk about. Want to try the cap upgrade but can't find any info one doing the swap. (Which caps to use and where they are on the board)Does anyone know where to find info on this?

Don't know yet, only had it a couple of wks.

Never contacted.

Really want to do the cap swap to see what it can do.

Can someone point me in the right direction to do this?

Very easy to use. I am just using the factory presets and moding as I go.
My unit has not been upgraded.

I am using in a live sound situation into a Beheringer 3282
I am only using for delay. I use one of the Aux returns and ne of the channel strips. Patching that way gives me a lot of control over the Lexicon. No noise ... Cool

I have had the unit for a while now and It works fine

No dealings

I'll give the Lexi an 8 because it is just OK

I've used a lot of soft and hardware effects in my life, and some have more capabillities than others. The MPX-100 hasn't got much editing possibilities. however you can edit the things you need to edit on this this. the thing is intuative and easy to use.

The quality of the reverbs are really good for subtile reverb on vocals or drumtracks. the thing does what it's supposed to do.
Unfortunately the input level has to be very low and there's digital clipping if the input volume is set to high. this clippign occurs even before the input knob! so don't set the input level to high....
due to this low input level, the possibilities to do heavy effecting is reduced drastickly.

It does what it has to do, whenever i want it to do it!

I produce all kinds of music from dance to pop-rock and the MPX-100 has proved to be a good reverb for my vocals and drumtracks. the other effects are nice and subtile. it's easy to use and has good sound quality. compared to software reverbs it is a bit soft (no heavy effecting with this baby!) for subtile reverbs it's just great and it doesn't take any CPU from your computer! (like softreverbs do a lot!)

This is an addition to my last review. I bought this unit for $70 dollars, and wasn't pleased with it. The effects sounded thin and tanky. After one reviewer talked about upgrading the caps, I went ahead and did the same. WOW! It totaly transforms every effect. The reverb, echo and chorus are now full and smooth. I replaced the caps with sprague orange drop. The input caps are .22 and are undersized. I replaced them with the gigantic .47 orange drop caps. I had to file the leads until they were thin enough to go through the holes. The other caps I replaced with the same values. So for $6 dollars worth of caps, you can transform this thing into an inexpensive quality sounding effects unit. Why didn't lexicon do this? With their bulk discount these cap upgrades would have probably cost $2. Why would they risk their reputation on a couple dollars?

Quite easy to use.

Sound quality is ok. My rating for this product reflects the price I paid. I bought this unit to work through the effects loop of several guitar amps, which have acutronics reverb(but not tube). I mainly was looking for a nice, soft reverb. I am not into heavy effects. This unit is a disappointment. It lacks headroom. Unit clips at a very low volume.

After fidling with it for a long time, and tweaking all the reverb settings, I decided that both my amps cheap reverb sound better. So much for Lexicons claim to fame. Some of the rest of the effects are OK. Some are useless. However, for less price than a single pedal($70), I wasn't expecting much and I don't think you could find a better unit price wise.

So far so good.

If it were stolen, I would either buy a better unit, none at all, or a unit that does one effect to a tee.

Pretty simple stuff, if I can work it out most can!

Purely used to add reverb to vocals on home recordings and I'm happy with the results. Have experimented with delay on guitars also and again the results are pleasing.

mmmmmmmm. Thought I could but. i inherited the unit from a mate, we tend to share alot of our gear, it had hardly been used and within 2 months of receiving it it the power supply packed up. It took me 6 months to get hold of another (Lexicon apparantly do not ship outside U.S) by persuading a local music shop to sell me a power supply from a new MPX110! Which cost me #30.
The unit now powers up beautifully, only problem is the LED's all stay on and the unit is totally unusable. i have tried all of the reboot tecniques described on the Lexicon sight with no success.

Unknown as yet! However very interesting to see that this seems to be a common problem and thus one could conclude a manufacturing fault. Lets see if Lexicon are humble enough to admit it.

I had been looking at other Lexicon products. i doubt whether this will happen now!

this unit is quite difficult to use becus it dosent have many knobs ,so all the programming is done using internal menues

nice sounds the delays are good but i did not like the reverb

pay attention - if u want to use this unit live thier is along delay time when your switching effects

dident have any problems with it

nice sounds -- very bad for live performing

Easiest rack processor on the planet.

Excellent tonal quality. I especially love the rotary speaker presets and the delays rule. Chorus and flange presets don't suck either.

Here's the rub. I've had my MPX 100 for almost four years and it has always been flawless, until about three weeks ago when it went belly up. When the unit is powered on ALL the lights on the front panel come on and stay on. I checked the Lexicon web site and followed the prcedure for reinitialization with no success. Anyone out there had a similar problem? If so, please post a remedy. I doubt it would be worth the cost to ship it off to Lexicon and pay for repairs. Thanks.

I haven't contacted Lexicon for this problem, but they have always been helpful in the past.

I've loved this simple yet awesome sounding machine for almost four years. I'd like to get it up and running again, but I probably won't replace it because I have tons of other gear (POD xt, Boss VF-1, Lexicon Vortex & JamMan, plus a bunch of pedals).

Simple and easy to figure out. The manual is direct and helpful. I haven't done much patch editing with it, I'm pretty happy with how the factory presets.

I use this unit with a Boss DS-1 distortion pedal, NS-2 Noise suppressor pedal, and run everything through a BBE DI box. I play an American Fender Tele and a Rickenbacker 360 through this setup. I use a Fender Blues Junior tube amp. I love all of the effects on this unit. I made my own pedal that I can plug in the back of the unit and control my delay settings and bypass the unit from my floor pedals. This is the best thing that has happened to my setup. I've played professionaly with this unit for over a year now and just love it.

Very dependable. I keep it in an SKB rack unit case and take very good care of my gear. I would not hesitate using it without a backup.

N/A

My friend who is a sound engineer had this unit in one of his racks and let me try it out with my guitar. I was floored and bought one right away. This is a basic unit for a good value but with great legendary Lexicon sound and quality. If I were to ever upgrade to a different unit, I think that I would get a Lexicon unit with some more patches and editing features.

The MPX100 is fairly easy to use, especially if you do what a lot of people do, which is to dial through the Presets until you find a sound that's close enough to what you wanted. Editing the patches isn't too difficult, but I like to go deep into my effects, and the MPX100 is pretty limited in that regard. The fact that Lexicon only allowed for 16 User patches suggests that they intended the MPX100 to be used primarily for the factory presets.

I've always liked Lexicon's manuals, the layout, the info and the wire binding; for most manuals you need a music stand. Having said that, this isn't the first Lexicon manual I've read that leaves out some vital information. For example, many of the SFX presets are Dual Programs, which means that you can tweak them with the Effects Lvl/Bal knob, as well as the Adjust knob; the manual doesn't mention this. Try tweaking the Effects Lvl/Bal knob on SFX like "The Abyss" or "Dream Sequence" to hear what I mean. The lack of values for Reverb Decay time is also kind of a pain. Is the longest Decay time 10 seconds, 18 seconds or even 32 seconds? The manual doesn't say. I guess you either trust your ears, or buy a stopwatch. There are some other omissions of this type.

I don't know if there ever was a software revision for the MPX100. The MPX110 came out so soon after the MPX100, it probably is the upgrade.

A Les Paul Special SL and a PRS Santana SE are my main guitars. I tend to use A GT-3 instead of an amp, but when I need an amp I use a Roland JC-90. In either case, I use piles of other effects, although I'm constantly swapping things in and out of my signal chain for different sounds. I bought the MPX100 primarily as a clean, dedicated Reverb, but I do use some of the other effects. Usually, it winds up at the very end of my signal chain, unless I'm using it for the Pitch Shifter.

As other reviewers have noted, it's way too easy to redline this thing. I've noticed that some other Lexicon devices (like the JamMan) have this same problem. I haven't encounted the raging digital distortion some reviewers described, or I would have returned the unit. A Volume pedal near the end of your signal chain is always a good thing to have, and with the MPX100, it's damned near essential.

The effects are a mixed bag, as far as sound quality. The Pitch Shift effects aren't what I expected from a Lexicon device, and I've always found Lexicon's Flanger effects too subtle for my taste. Even the Reflex, which had deeper programing power, never gave me the jet roar of my favorite analog pedals. The Chorus effects are very nice, but again, I wouldn't mind being able to dial in a little more swoosh and swirl. I liked the Tremelo effects just fine, but the Rotary effects were the least impressive to my ear. I was able to get some decent Phaser-type sounds with the Rotary presets. My favorite presets to tweak have tended to be in the SFX group.

I'm also a Bill Frisell fan, though I don't claim his level of skill. I haven't tried to create any sounds that emulate those of my favorite artists, but I can see how someone would be able to dial up some decent Frisell/Belew/Andy Summers-style sounds with this box. I give it an 8 only because I expceted a bit more from this box; for clean sound, I would probably give it a 10.

I certainly hope so, as I don't exactly have a backup. I tend to treat my gear well, so if it breaks down, it won't be from road abuse.

I have a few Lexicon boxes, and have had to contact them a few times. Lexicon's people are among the most helpful I've dealt with. The manuals aren't cheap, but that's not the fault of the support staff.

I play weird, twisted guitar, and thus, I have plenty of really weird and nasty effects processors; the MPX100 isn't really one of them. I bought it mostly for the clean Reverbs, which it delivers, and consider the other effects bonus material. The S/P DIF Out is a nice touch, as well.

I've been playing too damned long, and have a pile of effects boxes, which I mix and match for different sounds and textures. Some players collect guitars, I collect sounds. If something happened to my MPX100, I would probably move up to an MPX500, or maybe a TC Electronics M*One. I used to have a Reflex, and would certainly grab one of those if it came my way.

I have a sort of love/hate relationship with the simplicity of the MPX100. It's nice to dial up a simple Reverb when I need it, it's a pain that the Dual Programs are so limited. My favorite feature may be the Digital Out.

Price, overall quality, and the Lexicon name were all factors in my purchasing this unit. Over time, I've been replacing my old ART and Digitech gear with Lexicon effects, mainly because of sound quality. (My old Multiverb II put out a louder hum than my amp.) Anything lacking from the MPX100 is probably available in one of the higher-end units.

The MPX100 does what I wanted from it, so in that sense it helps me make music, although I find it less impressive as a sound-sculpting tool. The high-dollar MPX1 is probably closer to what I'd like, but price is a major factor. Anyone looking to get their hands on Lexicon sound for low cost should check out the MPX series.

As simple as they get.

This unit sounds so ugly I thought it was broke. Then I realised the inputs were distorting and started to adjust levels. This baby has got NO headroom whatsoever, be warned. To get rid off distortion, you have to back off so much signal that you cant hear anything going through the unit. Set at full wet, adding signal until you hear any effect will make the "signal" and "peak" LED's lights up almost exactly at the same level. When you get signal, it peaks... and distorts very badly.

I rely on it do sounds as shitty every time, and it does. But I don't wanna give a 10 for that.

Lexicons rep is totally screwed with this unit, this was actually the first I bought without testing. Lexicon's don't need to be tested, they're the best. Yeah, right... they suck. As someone else said, they have exchanged their rep for fast cash, not so smart.

The knobs/use of the MPX 100 is easy. The hard part is remembering the presets w/o the manual. But the manual is easy to use, and once you get the hang of it, it's not real hard. Nice that there is no menus to scroll through. And the different knob parameters do give plenty of flexibility to sound.

I think it sounds great. There is no noise from the unit itself, any noise I get is from tube distortion, if I'm using my Zoom 9150. If I use my digital distortion (Digitech RP100)-it's very clean. All the effects are great and have a good range. Subtle to extreme (weird) if you need. I like the pitch-delay setting best, can get some great textures from that. The reverbs are great. Very different sounding than my Digitech DSP256XL--those have a gritty-ness to them that I like at times, the MPX 100 gives me cleaner/clear sounds. I like to have choices, and the 100 gives me plenty. I only wish it had more of the special effects-16 seem too few, those are fun to play with. But overall, the range of sounds/use/application are very good.

seems well built. it's pretty small (not very deep) and light.
hate the wall-wart--that's the only thing I worry about.
But the knobs seem pretty rugged.

unit seems pretty strait-forward.
their web site is handy, i checked it before i bought my unit.
read all the reviews on it-they were all good for the most part.

I bought this after reading the Bill Frisell article in GP earlier this year. I figured it it was good enough for him, it was good enough for me. My only complaint is the 2nd I bought mine (Jan '02), they came out with the 110. But I think this is a very useful piece of gear for music. My only complaint is that the 5.5 sec of delay doesn't have a 100% regeneration or loop ability. So that is the only downfall, but I have other (loop) gear to compensate. I'm sure some may feel that the lack of controll over all the delay perameters is bad, but I think there is enough variations to keep most happy. Over all an easy piece of gear to use, at a decent price and it sounds good.

Facil de usar, tiene un solo control (tweak) de efecto.
Excelente manual, claro y bien escrito.
Un aspecto negativo es que el I/O es no-balanceado, entonces al
utilizarlo con mi Mackie 1604VLZ, tengo que ajustar las ganancias
de modo de reducir el ruido producido por esta unidad.

Lo utilizo como reverb principal, es decir es la reverb con que mezclo
los temas en mi estudio casero.
Es un poquitin ruidoso, pero no demasiado, en la mezcla no se nota.
Por algun motivo la reverb NO produce una mejora sustancial frente a la nanoverb de Alesis. Las reverb del MPX100 son gruesas y centradas en el rango medio, entonces el resultado es que la mezcla resulta un poco "entubada", como en un tunel.
Quiero evaluar una MPX500 para ver si mejora el resultado.
Cuando la compre pense que la calidad del sonido era mejor.

Ningun problema.
Se ve y se siente bien construida.
Solo ha sido utilizada en mi estudio casero.

N/A

Mi estilo de musica son variaciones de Rock, blues, progresiva.
Siempre he utilizado este efecto en la mezcla final por lo tanto se agrega en peque?as cantidades, diferente es el caso en que el efecto se aplica a una pista (track), ya que alli es posible utilizar al maximo y de maneras exageradas los efectos.
Si se rompiera, no compraria otra. Probaria la MPX500.
Esta bien construida y es facil de utilizar.
No es un efecto que sorprenda o enamore, pero nunca he dejado de utilizarlo.
Hace 3 a?os que compre el MPX100.

Easy to use. Most of the presets are pretty good,
but I'm mainly interested in the reverb, hall, and ambience settings.
I'm trying to use it with Keyboards (Roland XP-30, XV-5080), with an interest in recording. Haven't tried out many of the other settings, and haven't tried out the MIDI stuff.

Again, I'm mainly interested in the reverb, hall, and ambience settings. The reverbs sound pretty good, but I'm not totally satisfied with the way the MPX interacts with the rest of my system. I find that when I introduce the MPX100 into my mixer EFX send loop, it adds a bit of background noise. It does spread out the stereo image nicely, though. I leave the Mix knob set to 100%, like the manual recommends for AUX sends. The biggest problem I'm finding is that it's difficult to set levels on it properly -- I have to monkey with the INPUT level and my mixer AUX send level incessantly -- play too hard, and the the sound gets distorted (and it distorts dreadfully!), set the settings too low to compensate and not enough noticeable EFX.

NOTE: Sometimes it will distort without the red LEDs coming on -- but perhaps that's my setup. Maybe I'm picky, but I would like to be able to set the knobs at some nice compromise position and forget about it--but I can't with this unit.

Like some of the previous posters said, I do get the impression that there's a decent engine somewhere underneath the hood, but Lexicon cut a few corners and shoveled in some cheaper accessories to keep the cost down.

Have only had it for a few days. Can't comment too much.

Again, have only had it for a few days. Can't comment too much.

Well, guess I'll try to see if I can live with its limitations for a while. Haven't tried yet, but I'm worried the MPX100 may not be too suitable for recording purposes. I may try to sell the thing and buy a Roland 3030, which several people here seem to think is a better product in this price range.

As with any unit, there are some presets you'll like, and others you'll learn to avoid. I find the front panel layout to be pretty
well tought out. Visibility is very good, so long as you're looking
straight at it -- otherwise some of the PROGRAM and VARIATION choices
are a little tricky to see. Keep twiddling the controls, though, and
you should get something useful once you've picked a preset you like.

I tend to keep the MIX control at 10-11 o'clock (slightly biased
towards the DRY side) because I don't like to be swimming in reverb.
I generally keep MIX set halfway until I've made my adjustments, then
back it off a couple of notches.

The TAP tempo is, in my opinion, a necessary feature on a delay, and
the MPX 100 has one.

One thing I'd like to see which is missing is a high-frequency rolloff, though this is available on a few of the presets as the
ADJUST button value.

All in all, a good layout for the user who's not into building his
own effects from scratch.

I initially bought this for a remixing project I did, restoring and
remixing some early '80's Portastudio things for transfer to CD.

I had an old 16-bit ART Multiverb, which was pretty much impossible to
adjust, so I did some research and ended up settling on the MPX100.
It seemed simple and flexible, without either a huge learning curve
or a huge price tag.

I don't find it noisy (and I am pretty sensitive to hiss.)

Some of the effects are only so-so (the TREMOLO settings are particularly mediocre.) I generally use it for 'verbs and delays.

The verbs are decent, though maybe a bit "fizzy". The vocal plate
setting gets a bit of use, as well as a couple of the halls. Most
of the verbs seem to be a bit "bright" sounding, which no doubt
contributes to the fizz factor.

The delays are varied and decent -- the "tape" delays sound better
to me than the "digital" ones (treble rolloff on decay makes them
a bit more natural-sounding to my ears.)

Chorus on vocals is ok, tho as a rule chorus gives me the '80's
heaves. On vocal, a pinch won't kill ya, and these choruses are
sufficiently adjustable so that they don't overwhelm.

As I say above, setting the MIX less than halfway results in enough
reverb so that the ambience is perceptible, without getting swimmy.

The PITCH settings have the most audible "delay" between the input
signal and the effect signal. The unit needs time to identify the incoming pitch so it can generate the adjusted pitch. I find the
delay time on these to be unacceptable, but pitch shift is an effect
I'd hardly ever want anyway. I don't have golden enough ears to hear
any phase or comb-filtering in the 'verbs, tho at least one other
reviewer has alluded to it. Could be variability between individual
units. It's certainly there on the pitch shift, tough.

Flange is an effect which has always struck me as being too much
of an "effect" rather than an enhancer, so I leave it alone. The
MPX100 does have a couple of extreme flange settings, though.
Overall, if you don't expect it to sound like a $700 unit, it's
a decent-enough box.

Geez -- you had to ask.
The first one I bought lasted just over a year, at which point
I started having the problem described above by a reviewer named BEN.
The unit would freeze up, with no signal, and all LED's blazing.
At first, a hard boot (yanking and re-inserting the power) would
reset it, but one day it just flat-out croaked.
Now this thing had never been out of the room it was in, so I
know that the problem was electronic, not damage-related.
I run all my gear off surge strips to protect them from damage. So
I think that's a pretty bad endorsement for reliability. And seeing
someone else describe the same problem makes me think that some
chip supplier was selling Lexicon borderline components, some of
which have failed along the way.
I used to build pc boards for Lexicon, and they were very quality-
conscious (they disqualified us as a supplier, if you need to know)
so I tend to give them the benefit of the doubt - they probably
just got a few bad chips which croaked.
I bought a second unit because I was comfortable with the control
layout and familiar with the sounds; it has so far performed flawlessly.
So will it croak? Who knows? I'm rating reliability at a cautious 5.

I didn't approach Lexicon when my 1st unit failed. When I bought the
second one, the price had dropped, so I just held my nose and went for it. I was more concerned with getting up and running again, so
I went for another unit, rather than dicking with service, or changing
brands.

It's a decent low-priced unit -- more flexible than the real low-end
stuff, less gorgeous-sounding than the high-priced stuff. Easy
to use, easy to operate. The manual is excellent, and is small
enough to actually have open near the unit in a cramped work
environment (are you listening, Roland?) I have a Zoom 1204, which
has smoother-sounding reverbs despite its 18-bitness. But the
Zoom lacks the TAP tempo button, and its manual is in translated
Japanese -- nearly as bad as translated Czechoslovakian. So, though
the jury is out on RELIABILITY, I'd say that, if you like enough
of the sounds, then you'll do ok with this model.

Easy to use, but haven't really ventured into the storing or midi aspects of it.

I use for vocal, guitar, keys, and amplification for digital recoding on computer. There is no noise, and the reverbs/chorus are great. But there is a slight delay on some of the effects that doesn't cause too much trouble, but is apparent.

I wouldn't drop it, or smash it, but it's strong for a rack unit. Why would I want a backup?

N/A

Great for my reverby trippy music. I use it to process almost everything on my recordings. Some flaws, but a poor person like me could afford it.

This is very easy to use. Once You learn where the certain delays/choruses etc. are it's just go.
However - the control via MIDI could be much easier to use.

I have it loopbacked through a 16-channel old mixer, to add mainly delay to the Kurzweil HX1000 Horn expander and the Kawai K4 keyboard.

I would never go on a gig without backup! That goes for everything.

It's a new equipment, no repair neede yet. The manual was very easy to find on WEB.

I write and arrange jazz music for bigbands and brass bands. For that the MPX100 is superb. I ahve a lot of musical gear, but my main instruments are the double bass and the trumpet.
If you have to make a choice between the MPX100 and another brand ...
there's a lot of junk out there, but this sure is worth it's value.

Very easy.

Many unfair reviews as this unit is meant to be inexpensive
and yet give you elements of Lexicon sound.

It delivers in that 100% and anything <10 is unfair given
the price; of course in comparison with the very best
units you could say it's 8.5 absolute scale, but in reality
comfortable 9 and everybody should buy one !

I plug my Sure SM57 often directly and sing through this baby !

No problem.

Don' need it.

It's 100 for the price.

I am well off and can buy anything but I bought this
for my studio and I am happy: I use it in the loop of
my Mesa-Boogie Studio preamp or my prosonic combo
or in my vocals and it does great job ...

Everybody should buy one, although my next one may be
TC Electronic M300 as things are moving ...

Very easy to use but plan on spending time finding ?your preferred variation of the effect?. The MPX100 has 16 stand alone digital effects like chorus, flange, delay, echo, tremolo, pitch and various types of reverb Lexicon is famous for. It also has a mode to incorporate the use of dual effects (4 reverb types + delay, flange, pitch or chorus / 3 delay types + flange, pitch or chorus). The control panel is simple and very easy to operate. Controls are; Input level, effects Mix (wet/dry), Output level, Effect Level/Balance for stereo applications, Variation control that provides 16 different variations of the effect, and the Adjustment control which allows you to custom tailor the effect within the variation. Changing from one effect to another is just a rotation of the Program knob. What sold me are the 16 programmable User channels. It?s breeze to use. Adjust the effect to your liking, hit ?Store?, spin the Program knob to ?User?, spin the Variation knob to the user number you want to use and hit the ?Store? button again. Bingo, stored user program.

I run the MPX100 through the parallel effects loop on my Mesa-Boogie Nomad 55 Head. It is a very, very quiet unit. As for sound quality of the effects ? There are a lot of gripes about the sound but none apply to me. I enjoy what I use.

This is the first Lexicon product I purchased, Lexicon appears to produce reliable stuff. The MPX100 and Lexicon was highly rated by people I trust.

I purchased the MPX100 specifically for use with my electric guitar rig for live and in-studio recording applications and always run it through the effects loop. I wanted a quiet, all-purpose effects unit ? something that would provide effects such as chorus, delay, tremolo and have the capability of being subtly blended into the guitar sound. The MPX100 allows me to do just that. I have stored 5 custom-tailored User programs so far in the unit. During live applications I select the effect in between songs. Really easy. I used it while recording rhythm and lead tracks in the studio. I just selected my user programs for each track or part being recorded. The recording engineer commented on how rich the sound was produced from my rig. I?m not into huge sound alteration via effects processors (although this thing can provide those alterations) so the MPX100 does it for me. If you?re into nice effects and effects all in one unit, this may be a processor you want to consider. I did a cost comparison between well-made effects pedals and the MPX100 ? I found it to be not only much cheaper in the long run but much easier to maintain as well. I am tired of pedals breaking down, switches that don?t activate during live applications, pedal noise, dying batteries, etc. Also, Lexicon just came out with a MPX110 so you should be able to get the MPX100 at a good price. I?ve seen them at ~$180 since I got mine. The MPX100 does what I want it to do and much, much more. I?m still exploring the possibilities.

Really Easy To Use. If you know what effect you want and you can spend a few minutes (under 10) to read a manual, you're all set. The manual explains clearly what each effect is and how to control it, how to create, edit and save your own and even provides a diagram should you want to create your own bypass footswitch. (It has a jack for a bypass switch as well as the little bypass button on the front, but doesn't come with a footswitch.)

I like the chorus, I like the flange and trem effects. Delay is delay and it works like it should, pitch shifting is decent, but it can be a little picky at times. On more than one occasion, the same settings have not produced the same effect. (Only happened with the pitch shifting) I found that I need to turn the output volume all the way up with the input volume just below clipping in order to maintain the same volume I would have going direct into the amp (Marshall VS100).

Some of the effects I don't find effective are the reverb (it seems weak, and I like the reverb on the amp better anway) and detune.


It's perfectly quiet, but it does make a noticeable difference in sound quality when connected without going through the FX loop.

I've had problems with it from the start. The knobs tend to fall off all over the place. I had to have it repaired after a few months of use. When I plugged it in, all the lights remained on and I had no output signal. A hard reset didn't work for this.

Customer support was excellent. They issued me an RMA within a day and had it back in a little over a week. They even called after I got it back to make sure everything was working fine. One problem I did have was paying for shipping it back to them...It took me a while to come up with the money to pay for shipping and insurance (around $25). I just don't see why I should be paying for it when the problem was within the device and not my fault.

Easy to use, as good as a Boss pedal for chorus and flange, doesn't need batteries...

Lower sound quality, reliability issues, limited quality on some effects...

I can't belive people are comparing this thing to a Roland srv3030! The roland is more than double the price of the lexicon mpx100, of course it is going to be better. Nobody compares Ford Escorts to BMWs do they? No, so why do it with music equipment. You have your cheaper equipment and then you have your expensive equipment that only a selwct group of people can afford. Use what you can get, because at the end of the day, it's your creativity that makes the music, not your expensive toys.

This one is VERY easy to use- all the patches are labelled right there, and the variation knobs are easy to use. I especially like that it has a tap button. I prefer this one if I ever have to use a multi-tap delay patch that's synchronized with the beat.