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Alesis Sumo 15

No Longer Available
This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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(800) 771-8330

15 Watt Keyboard Amplifier with Built-In DSP and Stand Mount


The Sumo 15 is the ideal complement for keyboard players in search of a practice or monitor solution as well as for small PA applications. This compact, versatile keyboard / PA amplifier includes built-in effects, two channels (one for a microphone, one for a stereo keyboard), Alesis' unique Stereo Link feature, and a headphone output.


  • Portable 15W 2-channel keyboard and microphone amplifier

  • 8" full range speaker for brilliant highs and solid bass

  • XLR microphone input on channel 1 with effects

  • Stereo line inputs on channel 2 for keyboards or stereo sources with effects

  • Built-in stereo effects including flange, chorus, delay, reverbs and rotary

  • Low and high shelving equalization in master section

  • Headphone output for practice situations

  • "Stereo Link" for stereo operation between two Sumo 15's or any other amplifier

  • Pole cup on underside of enclosure facilitates "speaker on a stick" setups

  • Perfect of practice, live performance or portable applications


  • 15W 2-channel keyboard / PA amplifier

  • 8" Full Range Driver

  • XLR input-channel 1

  • 2 stereo line inputs- channel 2

  • Post-fader effects sends per channel

  • Internal digital effects processor with 15 preset effects

  • 2-band EQ in master section

  • Headphone output

  • Stereo link feature

  • Output(RMS) Mono @1%THD 15 watts at 8ohm

  • Dimensions: 17" x 11.25" x 9.5" (L x W x D)

  • Weight: 18.5 lbs

Q & A

Sumo 15
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18.50 lbs.
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