MXR Custom Comp review

High-quality compression in a custom shop stompbox

  • £169

MusicRadar's got your back Our team of expert musicians and producers spends hours testing products to help you choose the best music-making gear for you. Find out more about how we test.

Compression. It's the effect that's present on every piece of music you listen to, yet it's often forgotten when it comes to your pedalboard. A decent compressor can add sustain and attack to your notes, even out your dynamics for picking and boost your signal for solos.

MXR's new Custom Comp stompbox is straight outta the custom shop cased in MXR's familiar mini-housing. It's true bypass to avoid sucking your tone when you're not using it, and there are two controls, Output and Sensitivity, as well as an internal Attack control.

As you'd expect, the Output level controls the level, while Sensitivity sets the ratio or amount of compression you're applying, and the Attack controls how quickly the compressor kicks in. By setting the Output high, with lower Sensitivity levels, you can use the pedal for a subtle levelling of your dynamics or to give a boost. Turning up the Sensitivity starts to squash your sound more.

Although the Custom Comp is fairly unintrusive, you'll definitely be aware of its presence if you're liberal with your settings.

If you're playing a lot of high-gain sounds then you probably won't notice the Custom Comp's subtle low noise transparency, making £169 a pretty hefty outlay for just one pedal. Clean players after sharp sounds, however, will lap it up.

Stuart Williams
Drums

Stuart has been working for guitar publications since 2008, beginning his career as Reviews Editor for Total Guitar before becoming Editor for six years. During this time, he and the team brought the magazine into the modern age with digital editions, a Youtube channel and the Apple chart-bothering Total Guitar Podcast. Stuart has also served as a freelance writer for Guitar World, Guitarist and MusicRadar reviewing hundreds of products spanning everything from acoustic guitars to valve amps, modelers and plugins. When not spouting his opinions on the best new gear, Stuart has been reminded on many occasions that the 'never meet your heroes' rule is entirely wrong, clocking-up interviews with the likes of Eddie Van Halen, Foo Fighters, Green Day and many, many more.