MXR M-135 Smart Gate Pedal  

When I first got the pedal I was surprised that i pulled on the knob a little bit and it popped right off, it was easy enough to slide back into place, but I would like something that just stays there. aotherwise it's done me good, I got this because I started playing my older guitar for lower tuned stuff and the guitar makes quite a bit of buzzing. It did block out the buzzing as needed, and I'm content with it.

Fairly basic

MXRs are built like tanks

Does its job for the money

I am reviewing this pedal with for a specific function.  I am running it through the effects loop of my Marshall DSL50 head.  It's a relatively noisy amp on the gain channel so my experience with it may not match yours.  Overall, this pedal does what its supposed to do. It cuts out most of the noise and works like a good noise gate should.  There are 3 settings but I find that with my noisy amp, I have to use the FULL setting with the trigger level around 2 o'clock.  I have an ISP Noise Decimator in front of my amp so this pedal is going through the effects loop to cut out the left over buzz and hiss. The Hiss setting and the MID settings dont really do enough but again, it could be my amp, the tubes, the wiring in my house etc.  I dont find that it affects my tone in a negative way but in FULL mode, it does cut off the sustain just a little when I'm on the clean channel.  Its a fair trade off to be able to "set and forget it" and to have a noise free amp.

Threshhold knob, and selectable frequencies to target.  Give it a 9 here because it does not have a loop return. 

I think Dunlop stands for quality.  This is no exception

Can't put a price on good tone

Great noise gate.  Let's you select what you want to target.  I use the FULL BAND to target the 60 cycle hum from my single coils.  Very quick reaction time, good response.  It does color your tone a bit.  Takes the edge off the highs ever so slightly.  Would never notice this playing with the entire band, but definitely by yourself, and trying to lay down a studio track.  I think every noise control device colors your tone, but this one is very very slight so I can live with compromise.  I definitely recommend. 

I play a Gibson Explorer and Les Paul through a Peavey Transtube XXL 100W 2x12 and run a Vox Tonelab LE through the effects loop. I love the tone, but since switching to this amp I've had the worst feedback. If I'm not playing a note and I'm on the stage, the amp's screaming. Tried an MXR EQ pedal, didn't work (great pedal, just not for this problem). Got this thing and it really does work like magic! In order for it to work I have to switch it to full mode and crank the knob a little past noon, but there's still absolutely no tone loss. My rig sounds as great as ever, just without feedback. Also killed some hissing. Oddly enough, it worked no matter where it was in the signal chain, but it's best in the effects loop. Definitely worth the money, it just works perfectly without killing tone. ALL IT DOES is take out the noise. I don't know how it works and I don't care, it just does! If you have any noise issues at all, this is what you want!