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EarthQuaker Devices Avalanche Run V2 Stereo Reverb & Delay w/Tap Tempo Pedal

EarthQuaker Devices is a powerhouse for ambient effects and nothing delivers dreamy delay quite like The Avalanche Run. This circuit offers everything you need to create etheral soundscapes with unparalleled precision control. Running in true or buffered bypass, the Avalanche offers 2 seconds of delay time with infinite repeats through one amp, or two in true stereo. All of your familiar controls are accounted for, and they go above and beyond with a rotary expression knob that instantly selects 1 of 6 assignable features for foot control. This opens up a new world of possibilities when running The Avalanche on stage and it's ripe for experimentation. Perhaps our favorite feature, the reverse delay and swell effect are two captivating additions to what is already a very complete toolkit of delay effects. To wrap it all up, the Avalanche includes a mixable plate-style reverb that has the perfect amount of high end shimmer for adding a ghostly atmosphere to your playing. There are always proponents on both side of the analog vs. digital debate, and the Avalanche offers a wide range of voices that can satisfy an old school fan who is looking for more control and variety. If you know you like digital delay, or better yet if you're unsure, The Avalanche Run is a perfect jumping off point.  

Direct from Earthquaker Devices ...

The Avalanche Run is a dreamy stereosonic exploratory multi-tool that includes up to 2 seconds of delay time, reverse delay, tap tempo with subdivision control, switchable true bypass or buffered bypass with 5 different tail lengths (including a sound-on-sound style lo-fi looping mode) and an assignable expression control that maps the expression jack to a control of your choice, including the toggle! The delay section allows tweaking from tape emulation to bucket brigade styles with a twist of the wide-range Tone control. The cavernous, plate-style reverb has just a touch of modulation similar to the one found in our precious Dispatch Master only more lush with an adjustable Decay. Otherworldly reverse delay and dynamic swelling reverb settings are accessible through a 3-way toggle switch. And that’s just the beginning...


1. Time: This controls the delay time and goes from 0ms to just under 2000ms.

2. Repeats: Controls the regeneration of the delay, from zero repeats to near infinite.

3. Tone: Controls the tone for the delay line only. Roll off highs to the left, roll off lows to the right and get a flat response in the middle.

4. Mix: The is the volume control for the delay line. This blends in the wet with dry until 1 o’clock, 1 o’clock to 3 o’clock boosts the wet signal over the dry and 3 o’clock up brings down dry until it is fully wet when all the way up.

5. Expression Jack Assign Switch: Use this switch to map the expression jack to one of the assigned controls.

  • Decay: Controls the reverb decay length

  • R Mix: Controls the reverb mix

  • Time: This takes over for the delay time control and is DRASTICALLY different than the interface control. Using the expression pedal to control the time will give you all kinds of wild effects that can not be achieved by turning the knob.

  • Repeats: Controls the delay repeats

  • D Mix: Controls the delay mix

  • Toggle: This takes over for the toggle switch and will cross fade from forward delay in heel down position to reverse delay in toe down position.

6. Ratio Selector Switch: Selects delay subdivisions when time is set by the “Tap” switch.

  • 1/1: Quarter Note

  • 3/4: Dotted 8th

  • 2/3: Quarter Note Triplet

  • 1/2: 8th Note

  • 1/3: 8th Note Triplet

  • 1/4: 16th Note

7. Decay: Controls the decay length of the reverb, short decay counterclockwise, long cavernous decay clockwise.

8. Toggle Switch (Mode Selector)

Normal: This is the “standard” delay and reverb mode

Reverse: This is reverse delay mode with “standard” reverb

Swell: This is the volume swell mode

9. Mix: This is the volume control for the reverb. Blends in the wet with dry until 1 O’clock, 1 O’clock to 3 O’clock boosts the wet signal over the dry and 3 O’clock up brings down dry until it is fully wet when all the way up.

Expression Jack

The expression jack is located on the west side of the pedal. It is a TRS jack with the tip acting as the wiper.

  • We recommend using a Moog expression pedal with the output adjustment knob all the way up.

  • We cannot guarantee any other expression pedal to work with the Avalanche Run.

Flexi-Switch® Technology

This device features Flexi-Switch® Technology! This relay-based, true bypass switching style allows you to simultaneously use momentary and latching style switching.

  • For standard latching operation, tap the footswitch once to activate the effect and then tap again to bypass.

  • For momentary operation, hold the footswitch down for as long as you’d like to use the effect. Once you release the switch the effect will be bypassed.

Since the switching is relay based, it requires power to pass signal.


For best results, please use the included 9v center-negative 1-amp DC power supply.