MXR M305 Tremolo review

An ultra-versatile tremolo pedal in a compact, 9V-friendly package

MXR M305 Tremolo
(Image: © Jim Dunlop)

Guitar World Verdict

A pretty comprehensive set of tremolo sounds in a compact footprint with plenty of performance options.


  • +

    Compact MXR format.

  • +

    Good price.

  • +

    Comprehensive and dynamic.

  • +

    Handy boost function.


  • -

    Four-screw battery access.

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The M305 Tremolo pedal replaces the discontinued M159 Tremolo model, which launched in 2008 and ran at 18 volts, necessitating the use of two batteries or another arrangement. This new iteration runs more conveniently from a single nine volts power source.

This tremolo can run in mono or stereo and features six different trem types, scrolled through by pushing the Gain knob. 

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Trevor Curwen

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.