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Electro-Harmonix Slammi Pitch Shifter/Harmony Effects Pedal   

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Slammi revolutionizes foot-controlled pitch shifting with a powerful new algorithm that yields tremendous improvements in tone. Three-octave polyphon...Read More

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Get total control over pitch shifting and so much more.

Slammi revolutionizes foot-controlled pitch shifting with a powerful new algorithm that yields tremendous improvements in tone. Three-octave polyphonic dive bombs, smooth as silk pitch shifting, drop tuning, fixed interval harmonies and bends plus much more. With the Slammi's precise control and glitch-free operation the only limit is your imagination.

  • Advanced new algorithm that sounds great and provides glitch-free tracking
  • Up to three-octave maximum bend
  • Create harmonies by mixing your dry signal with the effect
  • MAX BEND Control acts as an 11-way switch to set the maximum bend/interval. Choose Detune, ½ Step, Major 2nd, Major 3rd, Perfect 4th, Perfect 5th, Major 6th, Minor 7th, 1 Octaves, 2 Octaves or 3 Octaves/Dive Bomb
  • Precision control that lets you smoothly sweep your guitar's pitch up or down
  • Sweep direction can be reversed so maximum pitch bend is in the heel-down position
  • Super responsive design with no moving parts, nothing to wear out or break

Pick yours up today!

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Review Snapshot®

by PowerReviews
Electro-HarmonixSlammi Pitch Shifter/Harmony Effects Pedal

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


Tracks great, even on bass.


from Fort Collins, CO

About Me Novice


  • Excellent Sound Quality
  • Responsive


  • Awkward Controls

Best Uses

    Comments about Electro-Harmonix Slammi Pitch Shifter/Harmony Effects Pedal:

    I've had a great time playing with my slammi, pretty much since it arrived. I can get it to act like a passive sub-octave, which I love for my 4-string bass, especially with the dry blend control. Adjusting the dials is awkward, and the numbers on the effect are vague. I keep it set at 8 for octave for the most part. It's able to go up OR down, tracks polyphonically (entire chords!) and doesn't sound particularly digital.

    Buffered instead of true bypass does mean that certain purists might be wary, but I haven't found it to color my sound noticeably while off.

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