T-Rex ToneBug SenseWah review

  • £155
  • $185
The Tonebug Sensewah offers consistently rhythmic wah sounds.

MusicRadar Verdict

A pedal that will let you get funky.


  • +

    Nice range of playing sensitivity.


  • -

    We'd like to have seen more variation in the effect; expensive.

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The Sensewah is an envelope filter for producing an autowah effect and what T-Rex calls a 'yoy yoy' - it's similar but with more high frequency content. A sense knob determines how much effect you get while the range knob sets the width of swept frequencies.


Juxtaposition of the two knobs gives a useful range of automatic wah sounds that respond to player dynamics. While others could find a use for it, this is really tailor-made for funk players looking for consistently rhythmic wah sounds to fit a groove and a bit of 'quack' when digging into single notes.

If you'd rather concentrate on what your hands are doing (or your dance moves!) than manually control a treadle, this pedal will let you get funky.

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.