Today Music Critic will be comparing the Pro Co RAT2 to the MXR M104+. The team take this task very seriously - two products enter, but only one can leave. If you find this article interesting, you might also want to read The Top Distortion Pedal for Heavy Metal & More in 2025
     Contestant number one is the  Pro Co RAT2.
Contestant number one is the  Pro Co RAT2. 
     The challenger is the  MXR M104+. 
Another reissue of a legendary pedal, the Distortion + is the pedal of choice for that 70s/80s hard rock and metal sound. It achieves this through the use of some fairly hefty distortion, but with soft clipping that helps to ensure that you get a really nice bite, but that everything stays in harmony. It’s a very, very nice sound that you simply can’t find in a lot of distortion pedals, though it won’t be suitable for all genres.
The challenger is the  MXR M104+. 
Another reissue of a legendary pedal, the Distortion + is the pedal of choice for that 70s/80s hard rock and metal sound. It achieves this through the use of some fairly hefty distortion, but with soft clipping that helps to ensure that you get a really nice bite, but that everything stays in harmony. It’s a very, very nice sound that you simply can’t find in a lot of distortion pedals, though it won’t be suitable for all genres.
It is reasonably versatile too - if you really crank it up, you end up with some real fuzz that sustains well, but on the lower end, it can sound like a quality overdriven tube amp. Just a very nice sound all-round.
| HEAD TO HEAD COMPARISON | |
|---|---|
| Pro Co RAT2 | MXR M104+ | 
| KEY FEATURES | |
| 
+ Legendary distortion pedal | 
+ Nails the 80s hard rock tone | 
| WHAT OUR TEAM THOUGHT | |
| This is a hugely versatile pedal, with truly excellent sound and wonderful build quality. It’s not a super-budget option, but the price is very, very impressive indeed. You’ll struggle to find a better pedal in this price range and overall the bang for your buck might just be unbeatable in the market. | If you want to sound like your favourite 80s hard rock or heavy metal guitarist, then this is probably the pedal for you. It produces a unique sound thanks to that quiet clipping, and comes in a quality package. The price is in the mid-to-high range, but we think it’s worth it to be able to pretty much guarantee yourself this tone. | 
You might also be interested in Music Critic's in-depth article on this topic, The Top Distortion Pedal for Heavy Metal & More in 2025.