M133 Micro Amp Gain / Boost Pedal Review

Exactly what I wanted

With the gain set at around 1:00 it's a great clean boost, turn it to eleven and it adds a little dirt to the sound along with boost.

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Works as advertised

I just needed something to give a boost to my acoustic amp when doing a lead/break. This does the trick at an affordable price.

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Wonderful Used as a Boost

Paired with my Fender Bassbreaker 45, into the front end, it gets me that extra gain I need. It also improves all sound overall in a way that has me leaving it always-on. If you have this pedal on for a while, then turn it off and listen to what your amp sounds like on its own, you'll hear what I mean. I also love the one-knob configuration. Sure, they make a different model with… read more tone controls, but doesn't your amp have an EQ? Just throw this in front of what you've got going on, and you'll get an improved sound. That's been my experience, anyway.

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It does what it says it does.

I got this thing to push my tube amp into breakup territory without having to crank the volume. It worked!, just barely, the second I rolled off on any volume knob, just a smidge, it cleaned up. But that has more to do with my amps low gain tubes, it has high headroom, so when you put this micro amp in front of an amp like that you're gonna get a big volume swell first. However… read more if you have gain-y tubes like 12AX7's with EL84's, it'll work better to give you breakup sooner. But ya basically it's nothing more than a signal boost, Like cranking your volume knob on your amp or guitar, except your doing it with a foot stomp. It sounded transparent or "clean" to me. But of course, if you crank the gain knob on this thing you will get accompanying hiss and hum, and lose the subtlety of the overtones. But that's just part of the nature of signal degradation when you apply gain stages. Can't be helped. One the plus side you gain presence and fatness to your tone. It's Built solid and is bigger then you'd expect for doing such a simple little job. IMPORTANT. It does not come with a battery (9V) or an adapter, so have one of those on standby when you order one.

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Great for boost and a bit more bite

Gives a substantial amount of boost and dirt for my amplifier and is overall a great product

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