MXR M-133 Micro Amp Pedal 

Comments about MXR M-133 Micro Amp Pedal:

Simplicity at its best! There are a lot of booster pedals on the market now, including trendy high priced ones. The MXR Micro Amp will always be a safe bet and solid choice, if you ask me. The Electro Harmonix Nano LPB-1 is a fierce competetor given that it costs about half the price of the Micro Amp. If you like the midrange boost you get from the LPB-1, that might be the better choice. But, if you want a little more transparency and high end sparkle, the MXR is the way to go. Both pedals are solid, but the Micro Amp's case is significantly heavier and, essentially, bullet proof. This not only makes it potentially more reliable, but also means that it is less likely to tip over or move around on stage. Every guitar player should own a good booster pedal. The Micro Amp will perform that duty well!

Comments about MXR M-133 Micro Amp Pedal:

This pedal is great. It has been a main stay on my pedal board for about 4 years now. It has gone up and down the east coast doing festivals all over. I have had no problems at all with it. It holds up. It doesn't color your tone. you step on it and there is a nice amount of gain to saturate the sound but not too much and then it gives it that extra line level boost. This pedal is amazing! I would highly recommend this to any player weather they be a giging or non giging musician. I have also used this as a boost for solos when using my acoustic.

Comments about MXR M-133 Micro Amp Pedal:

The M-133 is a teriffic gain boost pedal. I've been using mine for years and have had no problems with it. On stage I use it behind my multi-effects processor and it gives me a great boost for lead work or for those riffs that really need to stand out. I also use it when recording to change my gain on the fly. We hired a new guitarist last year that swaps leads with me and I have him using an M-133 now! You could complain about the price but the fact is there's nothing cheaper that works as well and after all isn't it all about the sound? Do you go cheap when you buy your other pedals also or do you buy what you know works? Well this one works great and it's easy to use, you can even change the output with your foot while you're playing just by turning the one knob.

Comments about MXR M-133 Micro Amp Pedal:

This is a neat little pedal to give you a volume boost when required. The dial allows you to establish the added gain, and the foot switch kicks it on and off. It is fairly well built, and it does what it's supposed to - i.e., adds volume. The pedal is realtively transparent soundwise, in other words you get volume gain without getting anything else. My only complaint is that [$] is a little steep for what it does. I would have given it 5 stars if the price were below $50.

Comments about MXR M-133 Micro Amp Pedal:

I run it through my effects loop at the end of my signal path of effects instead of the front of the amp to maintain only volume boosting rather than tone and distortion changes. It works well and is very simple and compact on a pedal board.

Comments about MXR M-133 Micro Amp Pedal:

Works fine, wish it had come with an AC Power Adapter. Highly recommend this pedal.
Very simple and easy to use; Ilike that in a pedal.
Seems to be sturdy....only time will tell.
Could have cost a little less because it's just to boost the gain and nothing else.

Comments about MXR M-133 Micro Amp Pedal:

9
I love how this pedal only has one knob to deal with. It does a great job of representing the original tone or sound while amplifying it, either in clean or distorted modes.
So far, so good.
Not sure what's in the "guts" to warrant the price, but it sure does a great job with it's design intent.

Comments about MXR M-133 Micro Amp Pedal:

This pedal is great. I was looking for something to boost my overdrive tone when I switch out of rhythm into leads. I use a Boss SD-1 super overdrive pedal for a lot of lead stuff, but I also like it for rhythm- this makes it tricky when I don't want to change my tone necessarily, but I need to boost into a lead riff that can cut through the mix (and jump over a drummer who makes brushes sound like broad-swords.) My other distortion is a ProCo You Dirty Rat, but it's too sustain-y to use as a base tone on most songs and I use it mostly as an accent effect for really heavy fuzz or long sustained bends, etc. I'm playing through a Peavey Express 112 (yeah, I know) so obviously the distortion tone coming from the gain channel is worthless. BUT, the clean tone is pretty decent and I'm broke, which is why I still don't have a Fender twin reverb or similar. Anyway, I was going to buy yet another distortion pedal (m78?) so I could have a base distortion and a lead OD but then I found the M-133 and my problems disappeared. Basically, it makes you louder when you need to be. End of story. Super simple, and good at what it does. But it DOES warm up your tone a bit... I happen to LOVE the subtle, subtle change, but be warned, it is there. I found that running it before my SD-1 gave me the best boost sound for that pedal- just a bit more sparkle, warmth, and fullness without any extra sustain or squeeze- sort of like a compressor without the compression, I guess. Same thing goes for my clean tone and clean with reverb. I did notice that it doesn't do much for my ProcoYDR, but all that fuzz makes it hard to tell.
Basically, I bought it to drive my clean reverby tones and my SD-1 and I couldn't be happier with it.
I give it five stars here because even though it only has one knob, it's pretty versatile! Doesn't change your tone, but it does warm it up just slightly at higher gain, and frankly, it sounds GREAT.
Metal case feels super solid, input/output jacks and the 9V recepticle are all snug. Knob doesn't wiggle.
Well, I got lucky and got mine pretty cheap from a guy who bought it from MF and never used it, but even at the retail price I'd say it's a good deal, because it does it's job well and really isn't that expensive. I'd buy it new again if something happened to mine.

Comments about MXR M-133 Micro Amp Pedal:

this has to be one of my favorite effects of all time. want to be a little louder for a solo or an intense part of a song, without having a sound man that knows all your parts, or imagine, no sound man at all? just step on this little guy. I love the simplicity of it as well, makes a three knob boost seem a little overdone. Other clean boosts will give different characters of sound in front of a distortion pedal or distorted amp, or as a level boost, but this MXR unit really shines at "just making it louder" without much of any coloration, which is very often just what I want. It makes a good dirty boost too, in front of a fuzz pedal like the Fingerprint. for me this is an essential effect in most of my gigging rigs.

Comments about MXR M-133 Micro Amp Pedal:

I had looked for a unit that I could change from rhythm to lead quickly....After playing in groups for many years---I suddenly found myself as a "solo" act in March 2010 and was desperate--by accident I stumbled onto this unit that solved my problem!! Best addition that I've ever had in a pedal. Smooth change from rhythm, while singing, to doing a guitar solo. I highly recommend this pedal and have advised other to purchase---you can't go wrong for a most economical "problem solver"....if something should happen to mine I would order another ASAP.