ECCOS Delay Looper


The ECCOS Delay Looper is based on a new stereo, flanged delay tone. Create beautiful sounding tape style delay lines and then spin them endless with the Looper! Designed to be at home in live pro rigs or bedroom studios while experimenting. The Keeley ECCOS is a delay-looper workstation with superb sound quality and abundant features.

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Keeley ECCOS Delay Looper

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Keeley Electronics Eccos Delay Looper

The true-stereo Keeley ECCOS artfully combines a delay pedal and a looper. At the heart of the ECCOS is a neo-vintage delay with unprecedented control over tape-style echoes. Create long and majestic sounding tape flanged delay lines and then switch to the feature-packed Looper to record endless layers of sound! Dual stomp switches in delay mode are for true-bypass, tap-tempo and even endless feedback – but in looper mode they allow you to record, play, reverse, half-speed and even trigger a “play-once”. Live or as a studio workstation the delay and looper work together giving you endless room for creating and experimenting in a small footprint. With over four years of development on the Quad 24/56-bit Dream DSP, Keeley has reached the pinnacle of delay sound quality with the amazing new tones in the ECCOS.


The ECCOS now features Sound on Sound Mode! Sound on sound mode lets you record without erasing the original loop. The volume of the loops degrade over time, recreating a vintage reel to reel recording technique. To set the decay of the loops, hold down the FDBK knob and adjust the Depth control. This alt control comes in handy when using Sound on Sound Mode.


The ECCOS features advanced independent switching. The Delay or the Looper can be turned on and off independently. You can start the Looper without without a Delay Setting.


View, download, and print the NEW, updated ECCOS manual here:

ECCOS Manual 05-26-2020


Update form:

Return Form for Update here


ECCOS Features:

  • ECCOS is a True Stereo Delay and Looper
  • Studio quality delay with tape flanged modulation
  • Features include 3 memory presets, subdivisions, trails, runaway feedback
  • Huge array of tone and time-based controls with the Alt Hold feature
  • Full-featured Looper with reverse and half-speed loop effects
  • 2 minutes of looping in mono, 60 seconds in stereo,
  • Endless layers of recording!
  • True-Bypass and Tap Tempo on-board or remotely with any style pedal-switcher
  • Expression pedal assignment over any parameter and in any direction
  • Pro Rig designed, remote control thru 1/4″ jacks for live use with pedal switcher systems
  • 100% analog dry signal, audiophile designed input to output
  • Stereo True-Bypass/Trails, switchable on the fly
  • 9 Volt DC, 146mA low-current design
  • Made in Edmond, USA


Keeley Electronics Eccos Delay Looper


The Most Excellent Pedal Empire Demo! 😉

The Jay Leonard J Demo Video!

The Andy Martin Demo!

The Bryan Ewald Demo!

The Aaron Sternke Demo!

 The Mike Hermans Demo!

Vanessa Wheeler Demo!

 Justus West Demo!

Emily Elbert Demo!

TJ Whitelaw Demo!

Eccos Technical Demo!

 Sound Isles Demo!

Sean’s Stompbox Saturday Demo!


Voted one of Delicious Audio’s ‘Best of 2020’!

Click here to see where we ranked!


Behind the Scenes!


After 4 years of development, a brand new effect sound, flanged delay, new hardware, new analog circuits, new digital control circuits, we were finally building our masterpiece.  The Eccos Delay Looper.

Here’s what’s going on; flurry of last minute 3-pointers, all kinds of awesome improvements on tiny details.  Ours blows away the competition!

Hale bros perfecting the placement of our new Dream DSP IC.

Stretching the pitch of the outlined package during SMT setup.

Success! First run is making circuit boards!

Hundreds of ECCOS cases!

Aaron Tackett programming the first ECCOS going out to YouTube channels, artists, and magazines.

Robert, Aaron, and Charley down below, all enjoying the tone of the ECCOS to the fullest.


  1. Bubba Jizzmore

    This is one of the best and most important invention contributions in music gear history. Sounds amazing, easy to use, dependable, small, and FUN. Works great. What more can you ask for? Great for all signal sources! This is everything that we have always wanted the DL4 to be and so much more. Everyone should own at least one of these.

    • Robert Keeley

      A profound and explicative “thank you Bubba Jizzmore”! We really worked hard at it.

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