Pigtronix Class A Boost

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.

MusicRadar Rating

4 / 5 stars

Transparent boost; compact; runs from 9V PSU.


18V PSU takes up more pedal real estate.


One louder when you need it, classily delivered.

Country of Origin


Available Controls

Footpedal with on/off switch Gain

Weight (lb)


Battery/Adaptor Type

DC adaptor


61 x 25.4 x 112

Weight (g)


Review Policy
All MusicRadar's reviews are by independent product specialists, who are not aligned to any gear manufacturer or retailer. Our experts also write for renowned magazines such as Guitarist, Total Guitar, Computer Music, Future Music and Rhythm. All are part of Future PLC, the biggest publisher of music making magazines in the world.

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