Pigtronix Class A Boost review

  • £99
The Pigtronix Class A Boost may only do one thing, but it does it well.

MusicRadar Verdict

One louder when you need it, classily delivered.


  • +

    Transparent boost; compact; runs from 9V PSU.


  • -

    18V PSU takes up more pedal real estate.

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After a slew of pedals that offer a left-field take on effects with maximum tweakability, the newest addition to the Pigtronix range has just a single knob and one function: the Class A Boost is a compact preamp/booster based around a J-FET transistor.


You can boost a signal by up to 20dB, dialled in with the pedal's gain knob, but it has been designed with a linear frequency response so that it doesn't mess with your tone as it gets louder.

The result is a pedal that you can kick in to get solos cutting through, to drive your amp harder or to add an extra dimension to an overdrive or distortion pedal.

Trevor Curwen has played guitar for several decades – he's also mimed it on the UK's Top of the Pops. Much of his working life, though, has been spent behind the mixing desk, during which time he has built up a solid collection of the guitars, amps and pedals needed to cover just about any studio session. He writes pedal reviews for Guitarist and has contributed to Total Guitar, MusicRadar and Future Music among others.